William Martin Croll (April 9, 1866 – October 21, 1929) was a Democratic member of the U.S. House of Representatives from Pennsylvania.

He attended Keystone State Normal School in Kutztown, Pennsylvania, and graduated from the Eastman Business College in Poughkeepsie, New York.

He taught school, and moved to Maxatawny, Pennsylvania, in 1889, where he engaged in the general merchandise business.

Croll was elected as a Democrat to the Sixty-eighth Congress, but was an unsuccessful candidate for reelection in 1924.

This article about a member of the United States House of Representatives from Pennsylvania is a stub.