NGC 3552 is a lenticular galaxy in the constellation Ursa Major. It was discovered on April 11, 1785 by William Herschel. It is a member of the galaxy cluster Abell 1185.
One supernova has been observed in NGC 3552: SN2025fxi (typeIa, mag. 17.756) was discovered by ATLAS on March 27, 2025.