Gliese 849 b is an extrasolar planet approximately 29 light years away in the constellation of Aquarius.

It is the first long-period Jupiter-like planet discovered around a red dwarf, announced in August 2006 by the California and Carnegie Planet Search team using the radial velocity technique.

The previously longest-period Jupiter-like planet around a red dwarf was Gliese 876 b.

There are, however, two disproven longer period Jupiter-like planets around Lalande 21185.

The distance of the planet is 2.35 AU and it takes 5.17 years (1890 days) to revolve in a circular orbit.