FIRST INTERSTATE BANCSYSTEM, INC.
401 North 31st Street
Billings, Montana 59116
April 6, 2017
VIA EDGAR
Securities and Exchange Commission
100 F Street, N.E.
Washington, D.C. 20549
| Re: | First Interstate BancSystem, Inc. |
| Registration Statement on Form S-4 (Registration Number 333-215749) |
| Request for Acceleration of Effectiveness |
Ladies and Gentlemen:
First Interstate BancSystem, Inc., a Montana corporation (the “Company”), hereby requests that the Company’s Registration Statement on Form S-4 be declared effective on April 7, 2017 at 3:00 p.m., or as soon thereafter as is practicable.
| Very Truly Yours, |
| /s/ Kirk D. Jensen |
Kirk D. Jensen |
Executive Vice President and General Counsel |