Joachim von Rohr (January 23, 1678 – September 9, 1757) was a lieutenant colonel for the Swedish Empire and Commandant of the Dalarö fortress.

He participated in the Battle of Poltava and was captured and held as a prisoner of war in Solikamsk in Russia.

He was the son of Hans Christoffer von Rohr (1626–1700) who was killed in action during the Battle of Narva; and Anna Catharina Cronman.

Together they had the following children: Joachim von Rohr was taken prisoner on June 28, 1709, during the Battle of Poltava just before the Surrender at Perevolochna.

His firstborn daughter, Anna von Rohr married Anders Örbom (1675–1740) while in Solikamsk in Russia.