This article is about the small borough in Tartu County. For the village in Kõue Parish, Harju County, see Äksi, Harju County
. For the island, see Aksi
Äksi is a small borough (Estonian: alevik) in Tartu Parish, Tartu County in Estonia. It is located on the southern shore of Lake Saadjärv, and has a population of 477 (as of 1 January 2010).
The Ice Age Centre, a museum about the latest ice age, is located in Äksi.
1815–1832 Otto Wilhelm Masing worked as a vicar in Äksi St. Andrew's Church.