The C's may refer to:
*
Boston Celtics
The Boston Celtics ( ) are an American professional basketball team based in Boston. The Celtics compete in the National Basketball Association (NBA) as a member of the league's Eastern Conference Atlantic Division. Founded in 1946 as one of t ...
, an American professional basketball team, known as "The C's"
*
Citizens (Spanish political party), a post-nationalist political party in Spain
{{Disambig