Clarence James "Peck" Griffin (January 19, 1888 – March 28, 1973) was an American tennis player.

His best major performance in singles was reaching the semi-finals of the 1916 U.S. National Championships (where he beat Wallace F. Johnson before losing to R. Norris Williams).

In addition to his singles success, Griffin also made a mark in doubles with fellow Californian Bill Johnston.

In 1913 he won the singles title at the Niagara International Tennis Tournament defeating Edward H. Whitney in four sets.

[4] He and Strachan won the U.S. Clay Court title that year, and in 1914 Griffin reached his singles final in a comeback beating of Elia Fottrell, 3–6, 6–8, 8–6, 6–0, 6–2, for the Clay Court singles crown (held that year in Cincinnati).