The 117th Separate Mechanized Brigade (Ukrainian: 117 окрема механізована бригада) is a brigade of the Ukrainian Ground Forces formed in February 2023 on the basis of 15th Separate Rifle Battalion.

The brigade is at the stage of formation as of February 2023.

[1] It has been involved in the 2023 Ukrainian counteroffensive, specifically in the Melitopol sector.

[2][3] On August 17 2023, they were visited by Ukrainian president Volodymyr Zelenskyy.

One soldier of the brigade said that Ukrainian units in the area were underequipped saying: "some units defending the city are frustrated because they aren’t getting the support they need.