KYJKnow Your Judge v0.6.2by SwansLake
Judge directoryColleen McMahon

Senior District judge

Colleen McMahon

U.S. District Court for the Southern District of New York

New York

Identity verifiedOfficial profile locatedOfficial sources collectedPresentation intelligence
01

Overview

Identity and service

Official judge-specific and circuitwide procedural guidance has been located for this profile.

Judicial role
Judge
Service status
Senior
Court level
District
Jurisdiction
Federal
02

Background

Biography and career

Born
1951 in Columbus, OH
Gender
Female
Race
White
Political affiliation
Democratic (via appointer)

Education

  • Harvard UniversityJ.D., 1976

Professional career

  • Private practice, New York, 1976-1979
  • Speechwriter and special assistant, Hon. Donald McHenry, U.S. ambassador to the United Nations, 1979-1980
  • Private practice, New York, 1980-1995
  • Judge, New York State Court of Claims, and acting justice, Supreme Court of the State of New York, 1995-1998

Judicial service

  • Judge, District Court, S.D. New York, 1998-present

Source: CourtListener / Free Law Project public biographical data. Demographic and political labels are incomplete, source-attributed, and are not used to infer judicial behavior. “Via appointer” describes CourtListener’s attribution method, not verified personal party membership.

03

Before you appear

Preparation checklist

  1. 01

    Read the judge-specific standing order first when one is listed.

  2. 02

    Check the docket and case orders for requirements that supersede broader guidance.

  3. 03

    Confirm current remote-access and courtroom technology arrangements before the proceeding.

Scope note

Judge-specific guidance is shown first. Broader applicable courtroom, courtwide, districtwide, and statewide guidance remains separately labeled below it.

04

Presentation rules

What the public sources say

CourtwideExplicit
Civil Trial Or Hearing

Leave required

In federal district-court civil proceedings, testimony is ordinarily taken in open court; remote contemporaneous testimony requires good cause in compelling circumstances and appropriate safeguards.

Page
Current official rules page and linked rules compilation
Section
Federal Rule of Civil Procedure 43(a); district civil proceedings only
Last checked
July 26, 2026
Verification
Automated checks passed
Read supporting source excerpt
For good cause in compelling circumstances and with appropriate safeguards, the court may permit testimony in open court by contemporaneous transmission from a different location.

The requirement is stated in current official court rules and is attached at court scope, not as a personal preference.

CourtwideExplicit
Criminal Proceeding

Restricted

Federal district courts may not permit courtroom photography or broadcasting during criminal judicial proceedings unless a statute or another federal rule provides an exception.

Page
Official U.S. Courts history and current rule text
Section
Federal Rule of Criminal Procedure 53; criminal proceedings
Last checked
July 26, 2026
Verification
Automated checks passed
Read supporting source excerpt
Except as otherwise provided by a statute or these rules, the court must not permit the taking of photographs in the courtroom during judicial proceedings or the broadcasting of judicial proceedings from the courtroom.

The requirement is stated in current official court rules and is attached at court scope, not as a personal preference.

05

Courtroom technology

Published equipment guidance

Judge-specific

Leave required

The courtroom is equipped with outlets, microphones, an easel, and a screen. If you require any other technology, you must provide it yourself. You must also be able to operate it yourself. The court does not permit cellular telephones, tablets, laptops, or other electronic devices into the courthouse without a court order specifically identifying the permitted device.

Open official source ↗
06

Published opinion footprint

Decisions and citations

Opinion data is not yet indexed for this profile

This does not mean the judge has no published opinions or no caseload. KYJ will only show opinion counts after transparent, source-linked CourtListener matching is available.

07

Sources

Public documents behind this profile

08

Change history

How this profile entered KYJ

Current profile indexed

Identity imported from Federal Judicial Center Biographical Directory. 3 presentation-related claims migrated with source provenance.