Terry O'Malley Seidler

Terry O'Malley Seidler
O'Malley in 1957
Born
Therese O'Malley

(1933-05-16)May 16, 1933
New York City, U.S.
DiedDecember 18, 2025(2025-12-18) (aged 92)
Alma materCollege of New Rochelle (B.A.)
OccupationBaseball owner
Spouse
Roland Seidler Jr.
(m. 1958; died 2008)
Children10, including John and Peter
Parents
RelativesPeter O'Malley (brother)

Therese O'Malley Seidler (May 16, 1933 – December 18, 2025) was an American baseball team owner and executive. She owned the Los Angeles Dodgers from 1979 to 1997, alongside her brother, Peter O'Malley. She was one of a few women to serve as the principal owner of a Major League Baseball team, inheriting half the team after the death of her father, Walter O'Malley. Later on, she became a part-owner of the San Diego Padres, alongside her children and brother.