USS Tech Jr. (SP-1761), sometimes written as ID-1761, was a United States Navy patrol vessel in commission during the latter half of 1917. Tech Jr. was built as a private motorboat of the same name in 1912 by Adolph Apel at Atlantic City, New Jersey. On 30 August 1917, the U.S. Navy leased her from her owners, L. & T. Prettyman of Cambridge, Maryland, for use as a section patrol boat during World War I. She was commissioned as USS Tech Jr. (SP-1761).