Joseph Boyd Poindexter (April 14, 1869 – December 3, 1951) was the eighth Territorial Governor of Hawaii and served from 1934 to 1942.

He was appointed judge of the Fifth Judicial District in Beaverhead, Madison, and Jefferson counties, Montana in 1909.

President Franklin D. Roosevelt appointed Poindexter the eighth governor of Hawaii on January 30, 1934.

[6][7] He mobilized the Hawaii Territorial Guard while the attack was still ongoing and appointed himself its captain general.

After his term expired, Poindexter remained in office until August 24, 1942, when his successor, Ingram Stainback, was confirmed.

He advocated for larger airports and other major public works projects, including roads, parks, schools and the Ala Wai Golf Course.