is a village in the municipality of Evje og Hornnes
. Hornnes is located in the traditional district
. Hornnes was a municipality of its own from 1886 until 1960.
The municipality of Hornnes was created by the split of Hornnes og Iveland into Hornnes and Iveland on 1 January 1886. At that time Hornnes had a population of 1,113.
On 1 January 1960 Hornnes was merged with Evje to form the new municipality called Evje og Hornnes. Prior to the merger Hornnes had a population of 1,280. On 1 January 1986 the Lislevand farm in the neighboring Birkenes municipality was joined to the Evje og Hornnes municipality.
The church in Hornnes is an octagonal shaped building that was constructed in 1828. Documents show that there was a church in Hornnes as far back as 1327. There are also records in Rome referring to "Ornes i Odralen" (Hornnes Church is currently in the Otredal parish).
Mining is prevalent throughout the region, and Hornnes is home to the Hornnes Mineralparken Visitors can tour a mine and learn about the minerals such as quartz and feldspar that are mined there.