- Catherine Russell
- Catherine Schubert
- Catherine Sutton (Nahneebahwequa)
- Catherine Swift
- Catherine Young
- Catholic Action
- Catholic Church Sex Abuse Scandals
- Catholic Women's League of Canada
- Catholicism in Canada
- Catholics Love the Bloc: Campaign 2008
- Cathy Gulli
- Cathy Jones
- Cathy Macdonald
- Catriona Le May Doan
- Cattail
