Francis Saltus Van Boskerck

Captain Francis Saltus Van Boskerck U.S.C.G.
Born	New York state
Died	Norfolk, Virginia
Allegiance	United States
Service / branch	Revenue Cutter Service, later United States Coast Guard
Years of service	1891–1927
Rank	Captain
Commands	Port of Philadelphia, 1917 USCGC Bear, 1920 USCGC Yamacraw, 1922 Great Lakes District, 1924 Bering Sea Patrol, 1925–1926 Norfolk Division, October 1926–1927
Wars	World War I
Alma mater	Revenue Cutter Service School of Instruction, Naval War College
Other work	Writer and composer of "Semper Paratus"

Francis Saltus Van Boskerck (October 1868 – November 26, 1927) was a United States Coast Guard captain known for writing and composing "Semper Paratus", the Coast Guard's official march. He held various senior positions within the Coast Guard.

Van Boskerck served in the Coast Guard as commander of the Coast Guard cutters USCGC Bear, USCGC Yamacraw and as commander of the Norfolk Division, district commander of the Great Lakes District, captain of the Port of Philadelphia, and commander of the Bering Sea Patrol. He wrote "Semper Paratus"'s words in 1922 aboard Yamacraw and its music in 1927 on a beat-up piano in the Aleutian Islands. He gave the song to Lieutenant Colonel Harvey Miller to publish the day before Van Boskerck died.