- Cillian, Beth
- Clare, Cassandra
- Clare, Jessica
- Clare, Lucy
- Clare, Pamela
- Clark, Bridie
- Clark, Janet
- Clarke, Alyssa
- Clarke, Karen
- Clarke, Lucy
- Cleeves, Ann
- Clement, Cynthia
- Clements, Abby
- Cobb South, Sheri
- Cobbold, Marika
- Coburn, Jennifer
- Cochrane, Becky
- Cohen, Julie
- Cohn, Rachel
- Cole, Courtney
- Cole, Kresley
- Cole, Tillie
- Colfer, Eoin
- Colgan, Jenny
- Collins, Manda
- Collins, Suzanne
- Condie, Ally
- Conlon-McKenna, Marita
- Connelly, Victoria
- Connor, Ellen
- Conrad, Stella
- Conrad, Sybille
- Cook, Claire
- Cook, Kristi
- Cooper, Heather
- Cooper-Posey, Tracy
- Corbin, Julie
- Corda, Kathrin
- Cordes, Kay
- Cordonnier, Marie
- Cornick, Nicola
- Cornwall, Lecia
- Cornwell, Bernard
- Corry, Jane
- Cosby, Diana
- Costello, Jane
- Cotterill, Colin
- Coughlin, Patricia
- Coulter, Catherine
- Counts, Wilma
- Court, Dilly
- Cowan, Anna
- Cox, Carol
- Cozzens, Tracy
- Cramer, Sofie
- Crandall, Susan
- Crawford, Kirsty
- Cree, Ann Elizabeth
- Cremer, Andrea
- Cristen, Marie
- Criswell, Millie
- Croft, Sydney
- Crosby, Tanya Anne
- Cross, Julie
- Cross, Juliette
- Cross, Kady
- Crowe, Sara
- Crowley, Cath
- Crownover, Jay
- Crusie, Jennifer
- Cunnah, Michelle
- Cunning, Olivia
- Curnyn, Lynda
- Curtis Klause, Annette
- Curtis, Sandy
- Cushman, Anne