William C. Crowell

William C. Crowell (1871–1951) was an American architect and builder.

Buildings which he designed or built include:

• Scottish Rite Cathedral (Pasadena, California), built in 1925
• Kindel Building, 1095 E. Colorado Blvd., Pasadena, California, built in 1928, and listed on the National Register of Historic Places
• The Atheneum and many other buildings on the Caltech campus
• Huntington Library

Crowell was born in 1871 near Argyle, Nova Scotia, Canada. He studied architecture in Seattle, Washington.