Exhibit 31.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

PURSUANT TO

EXCHANGE ACT RULES 13a-14(a) AND 15d-14(a),

AS ADOPTED PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Andrew W. Houston, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q/A of Dropbox, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

Date: May 20, 2019

DROPBOX, INC.
By:	/s/ Andrew W. Houston
Name:	Andrew W. Houston
Title:	Chief Executive Officer (Principal Executive Officer)