Marcus Cauffman ("Max" or "Dick") Sloss (February 28, 1869 – May 17, 1958) was an American lawyer who served as an associate justice of the Supreme Court of California from December 19, 1906, to March 1, 1919.

[7][8] After graduation, Sloss return to San Francisco and joined the firm of Chickering, Thomas & Gregory, where he became a partner.

[9] In November 1900, Sloss was elected judge of the San Francisco Superior Court for a term commencing January 1, 1901.

(1935),[16] a complex water law matter, and Meridian, Ltd. v. San Francisco (1939),[17] concerning the city's role in the Hetch Hetchy aqueduct.

Sloss was appointed the arbitrator to the National Longshoremen's Board established during the 1934 West Coast waterfront strike.

[25][26] They had a daughter, Margaret Sloss Kuhns, and two sons, Richard L. and Frank H., who both graduated from Harvard Law School and joined their father's firm.