John Tabor Alsap (February 26 or 28, 1830[Note 1] – September 10, 1886) was an American physician, lawyer, politician, and farmer active in the early days of Arizona Territory.

[Note 1] His family moved to Ohio when he was two years old before settling in Fort Wayne, Indiana when he was ten.

[1] After completing his studies, Alsap worked briefly as a physician in Indiana before moving to Contra Costa County, California.

He joined King Woolsey's second foray against the Apache from March 29 – April 17, 1864, serving as the group's surgeon.

[1] His other business activities include joining with Richard Cunningham McCormick, Woolsey, and others to form a corporation to build the first road between Prescott and southern Arizona.

[8] On October 24, 1870, Alsap was elected one of three commissioners for the Salt River Valley Association, which oversaw creation of the town of Phoenix.

These included resolving title issues in the newly created town of Phoenix,[13] performed weddings,[14] and serving as ex officio superintendent of the county schools.

[1] Judge Alsap was elected to represent Maricopa County again during the 1879 session of the territorial legislature.