Claus Adam (November 5, 1917 – July 4, 1983) was an American cellist and cello teacher as well as a composer.

His music teachers include Emanuel Feuermann for cello, Stefan Wolpe for composition, and Léon Barzin for conducting.

[1] He served as the second cellist of the Juilliard String Quartet from 1955 to 1974, preceded by Arthur Winograd and succeeded by Joel Krosnick, a former student of his.

He devoted the last decade of his life primarily to musical composition, and several of his works—including a cello concerto and a string trio—are published by G.

[5] This article about an American classical musician is a stub.