Count Carl August Ehrensvärd (16 September 1858 – 16 February 1944) was a Swedish Navy admiral, politician and Minister for Naval Affairs from 1907 to 1911.

He was head of the Military Office of the Ministry for Naval Affairs from 1904 to 1906 and he was promoted to captain in 1905.

Ehrensvärd was chief of the shipyard in Karlskrona in 1906 and Council of State (statsråd) and head of the Ministry for Naval Affairs from 4 December 1907 to 30 June 1910.

Ehrensvärd then promoted to rear admiral in 1910 and appointed station commander in Stockholm.

In 1916 he was appointed Inspector of the Navy's Exercises at Sea and the year after Ehrensvärd was promoted to vice admiral.