Theta Sigma Phi

Theta Sigma Phi
ΘΣΦ
Theta Sigma Phi badge
FoundedApril 8, 1909 (1909-04-08)
University of Washington
TypeProfessional
Former affiliation
StatusDefunct
Defunct date1996
SuccessorAssociation for Women in Communications
EmphasisJournalism
ScopeNational
Colors  Violet and   Green
PublicationThe Matrix
Professional Communicator
Chapters74+
Alternate nameWomen in Communications, Inc.
Headquarters
United States

Theta Sigma Phi (ΘΣΦ) was an American honor society and professional fraternity for women in journalism. It was established in 1909 at the University of Washington in Seattle, Washington. It was a founding member of the Professional Panhellenic Association in 1926.

In 1972, Theta Sigma Phi was renamed Women in Communications. In 1996, the organization was dissolved. The nonprofit Association for Women in Communications, a professional organization for women in the communications industry, was formed in 1997 to carry forward the mission of Theta Sigma Phi; it went defunct in 2023.