SecProbe.io

CORRESP
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        Chapman and Cutler LLP

320 South Canal Street, 27th Floor

Chicago, Illinois 60606

T 312.845.3000

F 312.701.2361

www.chapman.com

November 29, 2022

VIA EDGAR CORRESPONDENCE

Yoon Choo

United States Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

  Re:
  First Trust Exchange-Traded Fund VIII (the “Trust”)

  File Nos. 333-210186; 811-23147

Dear Ms. Choo:

This letter responds
to your comments regarding the registration statement filed on Form N-1A for First Trust Exchange-Traded Fund VIII (the “Trust”)
with the Staff of the Securities and Exchange Commission (the “Staff”) on October 4, 2022, (the “Registration
Statement”). The Registration Statement relates to the FT Cboe Vest U.S. Equity Moderate Buffer ETF – January (the “Fund”),
a series of the Trust. Capitalized terms used herein, but not otherwise defined, have the meanings ascribed to them in the Registration
Statement.

Comment 1 – General

The Staff reminds
the Fund and its management that they are responsible for the accuracy and adequacy of the disclosures, notwithstanding any review, comments,
action or absence of action by the Staff. Where a comment is made in one location, it is applicable to all similar disclosures appearing
elsewhere in the Registration Statement. Please ensure that corresponding changes are made to all similar disclosure.

Please provide responses
to all of the Staff’s comments on EDGAR at least five business days before the effective date of the Fund.

Response to Comment 1

The Fund confirms
that corresponding changes made in response to the Staff’s comments have been made to any similar disclosure throughout the Registration
Statement and that it will provide the Staff with a response letter in the form of correspondence at least five business days before
effectiveness.

Comment 2 – General

Please supplementally
provide a completed fee table and expense examples.

Response to Comment 2

A completed fee table
and expense examples have been attached hereto as Exhibit A.

Comment 3 – Principal Investment Strategies

The Staff notes the
following statement:

“The Underlying ETF is an exchange-traded
unit investment trust that uses a full replication strategy, meaning it invests in all of the stocks in the S&P 500®
Index.”

Please compare this
statement to the SPY prospectus, which states that the portfolio will consist of as many of the index securities as is practicable.

Response to Comment 3

In response to the
Staff’s comment, the referenced disclosure has been revised as follows:

“The Underlying ETF is an exchange-traded
unit investment trust that uses a replication strategy, meaning it invests in as many of the stocks in the S&P 500®
Index as is practicable.”

Comment 4 – Principal Investment Strategies

The Staff notes the
following statement in the section entitled “The Underlying ETF”:

“The Underlying ETF is an exchange-traded
unit investment trust that uses a full replication strategy, meaning it invests entirely in the S&P 500® Index.”

Please compare this
statement to the definition of “replication strategy” used above, which states that it means the Underlying ETF invests in
all of the stocks of the S&P 500® Index, and revise accordingly.

Response to Comment 4

In response to the
Staff’s comment, the referenced disclosure has been revised as follows:

“The Underlying ETF is an exchange-traded
unit investment trust that uses a replication strategy, meaning it invests in as many of the stocks in the S&P 500®
Index as is practicable.”

Comment 5 – Principal Investment Strategies

The Staff notes the
following statement:

“While the cap and buffer reference
the price performance of the Underlying ETF over the Target Outcome Period, the Fund expects its net asset value (“NAV”)
to experience the same general price movement, cap and buffer as a percentage gain or loss over the Target Outcome Period.”

Based on our review
of outcome period performance for the U.S. Equity Buffer ETF – April, it appears that while the Fund’s NAV may move in the
same general direction, negative or positive, as the price of the Underlying ETF, it may not move to the same extent as the price of the
Underlying ETF. Please consider whether this statement should be revised.

Response to Comment 5

The referenced statement
has been revised as follows:

“While the cap and buffer reference
the price performance of the Underlying ETF throughout the complete term of the Target Outcome Period, the Fund expects its net asset
value (“NAV”) to experience substantially the same price movement, as a percentage gain or loss throughout the complete
term of the Target Outcome Period. However, during the Target Outcome Period, the Fund’s NAV may not move to the same extent as
the price of the Underlying ETF.”

Comment 6 – Principal Investment Strategies

The Staff notes the
following statement:

“During the Target Outcome Period,
there may be periods of significant disparity between the Fund’s NAV and the Underlying ETF’s price performance.”

Based on our review
of outcome period performance for the U.S. Equity Buffer ETF – April, it appears there is always a disparity between the Fund’s
NAV and the Underlying ETF’s price performance and that at times this disparity can be very significant. If accurate, please revise
to disclose that the Fund expects that during the Target Outcome Period there will be a disparity between the Fund’s NAV and the
Underlying ETF’s price performance and that at times this disparity can be significant.

In an appropriate
location in this paragraph, please explain the expected disparity with examples.

Response to Comment 6

The
Fund believes that that disclosure as currently presented, and in concert with the changes made in response to Comment 5 above, is appropriate
for investor comprehension.

Comment 7 – Principal Investment Strategies

If accurate, please
strike the word “over” and replace it with “at the end of” in the following sentence in the section entitled “Buffer
and Cap”:

“The Fund seeks to provide a buffer
on the first 15% loss of the Underlying ETF over each Target Outcome Period.”

Response to Comment 7

The
prospectus has been revised in accordance with this comment.

Comment 8 – Principal Investment Strategies

The Staff notes the
following statement in the section entitled “Buffer and Cap”:

“If an investor purchases Fund
shares during a Target Outcome Period at a time when the Fund has decreased in value by 15% or more from the value of the Fund on the
first day of the Target Outcome Period (the “Initial Fund Value”), that investor’s buffer will essentially be
zero (meaning the investor can lose its entire investment).”

Please disclose in
a prominent place that the Fund does not provide a buffer on the first 15% loss of the Underlying ETF at any time other than the end of
the Target Outcome Period.

Response to Comment 8

The
prospectus has been revised in accordance with this comment.

Comment 9 – Principal Investment Strategies

The Staff notes the
following statement in the section entitled “The Underlying ETF”:

“As of ______, 2023, the Underlying
ETF had significant investments in information technology companies.”

Please update this
disclosure as of a recent date.

Response
to Comment 9

The prospectus has
been revised in accordance with this comment.

Comment 10 – Principal Risks

The Staff notes that
the principal risks appear in alphabetical order. Please order the risks to prioritize the risks that are most likely to adversely affect
the Fund’s net asset value, yield and total return.

Response to Comment 10

The Fund respectfully
declines to revise the disclosure as requested by the Commission. Ultimately, the Fund has reached the same conclusion as many other industry
participants and declines to make the requested revisions as it believes the disclosure is compliant with the requirements of Form N-1A.
The Fund continues to evaluate its approach to the ordering of risk factors in light of recent Commission guidance.

Comment 11 – Principal Risks

“Market
Risk” in both the summary and statutory prospectuses for the Fund and FT Cboe Vest U.S. Small Cap Buffer ETF – December varies.
Please reconcile.

Response to Comment 11

The
prospectus has been revised in accordance with this comment.

Comment 12 – Principal Risks

The
Staff notes the following statement in “Underlying ETF Risk”:

“An
ETF that tracks an index may not exactly match the performance of the index due to cash drag, differences between the portfolio of the
ETF and the components of the index, expenses and other factors.”

This
statement covers tracking error risk. Please review the disclosure under index related risk and consider whether the disclosure here should
be revised.

Response to Comment 12

The
Fund believes that the disclosure, as currently presented, is appropriate for investor comprehension.

Comment 13 – Performance

Please supplementally
provide the broad-based securities market index that the Fund intends to use.

Response to Comment 13

The S&P 500 Price
Return Index will serve as the Fund’s broad-based securities market index.

Comment 14 – Purchase
and Sale of Fund Shares

The Staff is unable
to locate the referenced information from the website link provided in the last sentence of this section. Please provide a direct link
to this information or a landing page that clearly indicates where this information is provided.

Response to Comment 14

The prospectus has
been revised in accordance with this comment.

Comment 15 – Additional
Information on the Fund’s Investment Objectives and Strategies

Please provide a more
fulsome disclosure of how the FLEX Options strategy works.

Response to Comment 15

The following disclosure
has been added to the prospectus in response to the Staff’s comment:

“For each Target Outcome Period,
the Fund will invest in both purchased and written put and call FLEX Options that reference the Underlying ETF. The Fund generally holds
in in-the-money purchased call options, out-of-the-money written call options, at-the-money purchased put options and out-of-the-money
written put options. The in in-the-money purchased call options are intended to provide approximately one-to-one exposure to the Underlying
ETF. The out-of-the-money written call options are intended to provide premiums to the Fund that will offset the cost of the purchased
FLEX Options and also limit the Fund’s returns to the cap. The at-the-money purchased put options in combination with the out-of-the-money
written put options are intended to provide the Fund’s buffer.”

Comment 16 – Federal Tax Matters

The Staff notes the
following statement in the section entitled “Sale of Shares”:

“Your tax basis in your shares
is generally equal to the cost of your shares, generally including sales charges. In some cases, however, you may have to adjust your
tax basis after you purchase your shares. An election may be available to you to defer recognition of capital gain if you make certain
qualifying investments within a limited time. You should talk to your tax advisor about the availability of this deferral election and
its requirements.”

Please consider whether
any of the disclosure in this subsection is applicable only to mutual funds.

Response to Comment 16

The prospectus has
been revised in accordance with this comment.

Comment 17 – Statement of Additional Information

Regarding the disclosure
on derivative actions, the Staff reiterates in full the comments provided on the Declaration of Trust disclosure for the First Trust Multi-Manager
International ETF.

Response to Comment 17

The Fund and the Advisor
have considered the Staff’s comment and respectfully decline to make the requested changes. The Fund and the Advisor believe that
the disclosure, as currently presented, is appropriate for investor comprehension.

Comment 18 – Statement of Additional Information

Regarding the disclosure
on fiduciary duties, the Staff reiterates in full the comments provided on the Declaration of Trust disclosure for the FT Cboe Vest Rising
Dividend Achievers Target Income ETF.

Response to Comment 18

The Fund notes that the Declaration
contains a provision that clarifies that the Trustees of the Trust are not subject to the law in Massachusetts or other states relating
to the duties and liabilities of trustees of donative trusts (a trust that establishes a gift of an interest in property to a beneficiary)
or probate trusts (a trust which allows a person to place an asset into trust and retain control and access) or similar common law trusts,
but are subject only to the law in Massachusetts relating to the trustees of Massachusetts business trusts under Chapter 182 of the Massachusetts
General Laws. This provision does not eliminate the fiduciary duties of the trust’s Trustees, but limits those duties to the duties
of trustees of Massachusetts business trusts. In addition, as noted, the Trustees remain fully subject to their duties under the federal
securities laws. Pursuant to the Staff’s request, the below disclosure has been added to the Fund’s Statement of Additional
Information (“SAI”). The Fund believes that adding this disclosure to the SAI and not the prospectus, as requested
by the Staff, is appropriate for investor comprehension.

“The Declaration provides that
a Trustee acting in his or her capacity as Trustee is liable to the Trust for his or her own bad faith, willful misfeasance, gross negligence,
or reckless disregard of his or her duties involved in the conduct of the individual’s office, and for nothing else and shall not
be liable for errors of judgment or mistakes of fact or law. The Declaration also provides that the Trustees of the Trust will be subject
to the laws of the Commonwealth of Massachusetts relating to Massachusetts business trusts, but not to the laws of Massachusetts relating
to the trustees of common law trusts, such as donative or probate type trusts…

These provisions are not intended to
restrict any shareholder rights under the federal securities laws and the Declaration specifically provides that no provision of the Declaration
shall be effective to require a waiver of compliance with any provision of, or restrict any shareholder rights expressly granted by, the
Securities Act of 1933, as amended, the Securities Exchange Act of 1934, as amended, or the 1940 Act, or of any valid rule, regulation,
or order of the Commission thereunder.”

Comment 19 – Statement of Additional Information

Please supplementally
disclose whether any defined outcome funds engage in securities lending.

Response to Comment 19

The
Fund confirms that none of the defined outcome funds engage in securities lending.

Comment 20 – Statement of Additional Information

The Staff notes the
following statement set forth in the subsection entitled “Liquidity Risk” in the “Investment Risks” section:

“The Fund might
be required by applicable regulatory requirements to maintain assets as “cover,” maintain segregated accounts and/or make
margin payments when taking positions in derivative instruments involving obligations to third parties (i.e., instruments other
than purchase options).”

The Staff understands
that the Fund no longer segregates assets in light of Rule 18f-4. Please consider whether this statement should be revised to reflect
only obligations in connection with OTC transactions.

Response to Comment 20

	In
response to the Staff’s comment, the referenced disclosure has been revised as follows:

“The Fund might be required to
maintain segregated accounts and/or make margin payments when taking positions in derivative instruments involving obligations to third
parties (i.e., instruments other than purchase options).”

Comment 21 – Federal Tax Matters

The Staff notes the
following statement:

“In addition, counsel to the Fund
may not have been asked to review, and may not have reached a conclusion with respect to, the federal income tax t