USS Miramar (SP-672), later USS SP-672, was a United States Navy patrol vessel in commission from 1917 to 1918.

USS SP-672, ex-USS Miramar (SP-672), sometime in 1918.
History
United States
Name	USS Miramar (1917-1918) USS SP-672 (1918)
Namesake	Miramar was her previous name retained SP-672 was her section patrol number
Completed	1907
Acquired	18 August 1917
Commissioned	31 August 1917
Renamed	SP-672 in 1918
Fate	Returned to owner 30 December 1918
Notes	Operated as private motorboat Lillian II and Miramar 1907-1917 and as Miramar from 1918
General characteristics
Type	Patrol vessel
Tonnage	144 gross register tons
Length	76 ft (23 m)[1] or 131 ft (40 m)[2]
Beam	8 ft (2.4 m)
Draft	7 ft 5 in (2.26 m)
Speed	13.5 knots
Complement	22
Armament	1 × 3-pounder gun 1 × machine gun

Miramar was built as the private motorboat Lillian II at Long Island City, New York, in 1907. She later was renamed Miramar.

On 18 August 1917, the U.S. Navy acquired Miramar from her owner for use as a section patrol boat during World War I. She was commissioned as USS Miramar (SP-672) on 31 August 1917.

Assigned to the 8th Naval District, Miramar conducted patrols for the rest of World War I. During 1918, her name was changed to USS SP-672.

SP-672 was returned to her owner on 30 December 1918.