Nipponites is an extinct genus of heteromorph ammonites.

The shells of Nipponites (primarily N. mirabilis) form "ox-bow" bends, resulting in some of the most bizarre shapes seen among ammonites.

Fossils of most species are found primarily in Upper Cretaceous strata of Japan.

Two species are found exclusively outside Japan, N. sachalinensis, which is found in Upper Cretaceous strata of Sakhalin island, and Kamchatka peninsula,[3] and N. occidentalis, which is known from two shells found in the Turonian-aged Hornbrook Formation of Southern Oregon.

[4] A Japanese academic institution Paleontological Society of Japan (ja:日本古生物学会) has Nipponites as its symbol.