Jotunheim is an inhabited planet and a member world of the United Federation of Planets.
In the 23rd century, Cornelius Wayne was the Federation Councillor for Jotunheim. (TOS novel: From the Depths)
Prior to 2377, Prynn Tenmei had visited Jotunheim and had had to out-ski an avalanche on the Tanglor ice chute during her visit. (DS9 novel: Warpath)