USS Dohema Jr. (SP-612) was a United States Navy patrol vessel in commission from 1917 to 1918. Dohema Jr. was built as a private motorboat of the same name by her owner, Edwin Binney of Sound Beach, Connecticut, in 1912. In 1917, the U.S. Navy acquired her under a free lease from Binney for use as a section patrol boat during World War I. She was commissioned as USS Dohema Jr. (SP-612) on 2 June 1917 with Ensign G. R. Hefflefinger, USNRF, in command. Dohema Jr. was decommissioned on 27 November 1918 and returned to Binney the same day.