Exhibit 23.1



                          INDEPENDENT AUDITORS' CONSENT





We consent to the incorporation by reference in this Registration Statement of
NYFIX, Inc. on Form S-3 of our report dated March 2, 2001 (March 14, 2001 as to
Note 18) appearing in the Annual Report on Form 10-K of NYFIX, Inc. for the year
ended December 31, 2000, and to the reference to us under the heading "Experts"
in the Prospectus, which is part of this Registration Statement.

/s/ Deloitte & Touche LLP
Deloitte & Touche LLP
Stamford, Connecticut
March 4, 2002