- Caelina
- Caitlin
- Calidia
- Calla
- Callie
- Callinica
- Calliope
- Callirhoë
- Callista
- Callisto
- Camellia
- Camilla
- Camille
- Candace
- Candela
- Candy
- Capheira
- Capucine
- Carina
- Carla
- Carlotta
- Carly
- Carme
- Carmel
- Carmela
- Carmelina
- Carmelita
- Carmen
- Carmenta
- Carmo
- Caroline
- Carya
- Casimira
- Cassandane
- Cassandra
- Cassie
- Castalia
- Catherine
- Cecilia
- Cecily
- Ceirios
- Celandine
- Celestine
- Celia
- Celiane
- Celina
- Céline
- Ceyda
- Chantal
- Chara
- Charlene
- Charlotte
- Chaya
- Chiajna
- Chiara
- Chiaretta
- Chloe
- Christel
- Christiana
- Christina
- Cilda
- Cissot
- Claire
- Clairette
- Clara
- Clare
- Claretta
- Clarice
- Clarissa
- Clarita
- Clementine
- Clotilde
- Cokkie
- Colette
- Coline
- Colombe
- Conegonde
- Connie
- Constance
- Coppelia
- Coralie
- Corbiniana
- Cordula
- Corina
- Corinna
- Corinne
- Cornelia
- Cosima
- Creestee
- Crenguta
- Crina
- Crystal
- Csenge
- Cynthia
- Cyrielle