Axel Arenfeldt (26 November 1590 - 4 October 1647) was a Danish government official and landowner.

He owned Basnæs at Skælskør from 1625 to 1647 and was lensmann of first Giske (1623–43) and then Stjernholm (1643–46) in Norway.

He was on several occasions also used as a diplomatic messenger, for instance to Spain in 1621, Sweden in 1624, and the Netherlands in 1630.

He constructed a lavish new main building and was in general known for his luxurious and wasteful lifestyle.

He died on 4 October 1647 at Basnæs and is buried at St. Peter's Church in Næstved.