| Richard T. Renshaw | |
| Birth Date: | March 22, 1822 |
| Allegiance: | United States of America |
| Serviceyears: | 1838–1874 |
| Rank: | Captain |
| Battles: | American Civil War |
| Relations: | William B. Renshaw (brother) |
Richard T. Renshaw (March 22, 1822 – March 22, 1879) was an officer in the United States Navy during the American Civil War.
Renshaw entered the Navy as a midshipman on January 26, 1838, and was commissioned acting master September 10, 1851. Resigning June 29, 1852, Renshaw reentered the Navy at the beginning of the Civil War as a lieutenant on May 13, 1861. He served in the North Atlantic Blockading Squadron commanding side-wheel gunboat during the war, winning promotion to commander on September 22, 1862.
Renshaw stayed in the Navy following the Civil War. He was promoted to captain on September 20, 1868. He retired December 10, 1874, and died five years later on March 22, 1879.
The first was named for him and his elder brother, William B. Renshaw.