Jennifer Siebel Newsom

Jennifer Siebel Newsom
Official portrait, 2024
First Partner of California
Current
Assumed role
January 7, 2019
GovernorGavin Newsom
Preceded byAnne Gust Brown
(as first lady)
Second Lady of California
In role
January 10, 2011 – January 7, 2019
Lieutenant GovernorGavin Newsom
Preceded byLaura Maldonado
Succeeded byMarkos Kounalakis
(as second partner)
First Lady of San Francisco
In role
July 26, 2008 – January 10, 2011
MayorGavin Newsom
Preceded byKimberly Guilfoyle (2006)
Succeeded byAnita Lee
Personal details
BornJennifer Lynn Siebel
San Francisco, California, U.S.
PartyDemocratic (2024–present)
Other political
affiliations
Republican (before 2008)
Independent (2008–2024)
Spouse
​
(m. 2008)​
Children4
RelativesThomas Siebel (second cousin once removed)
EducationStanford University (BA, MBA)

Jennifer Lynn Siebel Newsom (née Siebel) is an American documentary filmmaker and actress who since 2019, as the wife of California Governor Gavin Newsom, has served as First Partner of California.

She was retitled, from "first lady" to first partner, for the sake of gender-inclusiveness. She had, accordantly with her husband's earlier posts, from 2011 to 2019 been California's "second lady"; and, from 2008 to 2011, the "first lady" of San Francisco.

She wrote, directed, and produced the film Miss Representation (2011), which premiered in the documentary competition at the Sundance Film Festival. The film examines how the media have underrepresented women in positions of power.

The Mask You Live In (2015), the second film she wrote, directed, and produced, scrutinizes American society's definition of masculinity.