Katharine R. Colletta
T: (504) 585-7708
colletta@chaffe.com Download VCard

Areas of Practice

  • Admiralty
  • Product Liability
  • Railroad
  • Oil and Gas


J.D., Tulane University Law School, 2001
B.A., University of Notre Dame, 1998

Bar Admissions

U.S. District Court for the Eastern, Middle, and Western Districts of Louisiana
Eastern and Southern Districts of Texas, and the Northern and Southern Districts of Mississippi
U.S. Court of Appeals for the Fifth Circuit
Supreme Court of the United States

Katharine R. Colletta


As a partner with Chaffe McCall, Katharine Colletta focuses her practice in the areas of maritime litigation and general corporate defense.  She also works on a wide variety of transactional matters, contracts, and general business issues, including contractual indemnity and insurance coverage questions.  She has represented a Fortune 200 oilfield services company in several litigation and contractual matters.

A 1998 honors graduate of the University of Notre Dame, Ms. Colletta returned to New Orleans to attend Tulane Law School.  While in law school, she served as a judicial extern to the Honorable William H. Byrnes, Chief Judge of the Louisiana Fourth Circuit Court of Appeals.

Ms. Colletta authored a successful brief in the United States Court of Appeals for the Sixth Circuit regarding class certification and successfully opposed a writ of certiorari to the United States Supreme Court on that issue.  She has also co-authored a successful brief in the United States Court of Appeals for the Fifth Circuit regarding circular indemnities created by multiple oil field services contracts and additional-insured status.


2009 Maritime Update, New Orleans Bar Association, December 2009, New Orleans.  Ms. Colletta was a member of the panel discussing recent maritime decisions and gave a presentation on punitive damages.


  • Selected for inclusion in The Best Lawyers in America® for Oil and Gas Law, 2013-2016
  • AV Preeminent® Peer Review Rating in Martindale-Hubbell
  • Selected for inclusion in Louisiana Super Lawyers as a Rising Star, 2014
  • Named as a Top Lawyer in Admiralty, Maritime and Energy in New Orleans Magazine, 2013


  • Junior League of New Orleans