Karl Marx Square Water Tower (Russian: Водонапорная башня на площади Маркса) is a water tower in Leninsky District of Novosibirsk, Russia.

In 1930, Zaobsky District was formed in Novosibirsk, which included the settlements of the left bank of the Ob.

At first, the water tower was surrounded by potato fields; later, residential buildings appeared here.

In the middle of the 20th century, the tower ceased to function and stood abandoned until 1985, after which it was occupied by a youth club.

In the 1990s, the tower housed the NTN-4 television company, which ceased to exist in 2005.