USS Aeolus (SP-186) was the proposed name and designation for a motorboat considered for United States Navy service as a patrol vessel but never acquired.

History
United States
Name	USS Aeolus
Namesake	Aeolus, the god of winds in Greek mythology
Builder	Joe Polliot, Detroit, Michigan
Completed	1915
Acquired	Never
Notes	Civilian motorboat inspected for U.S. Navy service but never acquired
General characteristics
Type	Patrol vessel
Tonnage	67 tons
Length	83 ft 6 in (25.45 m)
Beam	16 ft 6 in (5.03 m)
Draft	4 ft 8 in (1.42 m)
Speed	10.5 knots
Complement	11 (planned)
Armament	2 x 1-pounder guns (planned) 1 x machine guns (planned)

Aeolus was built in 1915 by Joe Polliot in Detroit, Michigan. The U.S. Navy inspected her for World War I service as a patrol vessel and assigned her the section patrol designation SP-186. However, the Navy never acquired her for service, and she remained in civilian hands.