Hanseat was a German fishing trawler that was built in 1926 as Sirius.

It drove a single screw propeller via a low-pressure turbine.

The fishing boat registration BX 189 was allocated,[3] as were the Code Letters QVLB.

[2] In 1934, her Code Letters were changed to DQNV,[5] On 13 January 1931, Hanseat sank at Bremerhaven.

On 20 August 1942, she ran aground and was wrecked on Naissaar, Soviet Union.