Consent of Independent Registered Public Accounting Firm
We consent to the reference to our firm under the caption "Experts" and to the use of our report dated October 16, 2015, except for Note 16(f), as to which the date is January 25, 2016, in the Registration Statement (Form S-1) and related Prospectus of Editas Medicine, Inc. dated January 25, 2016.
/s/ Ernst & Young LLP
Boston, Massachusetts
January 25, 2016
