Ulric Dahlgren (April 3, 1842 – March 2, 1864) was a colonel in the Union Army during the American Civil War. He was the son of Union Navy Rear Admiral John A. Dahlgren and nephew to Confederate Brigadier General Charles G. Dahlgren. He fought in several key battles in the Eastern Theater of the American Civil War and had his leg amputated below the knee after being wounded at the Battle of Gettysburg. He returned to military service and was killed in 1864 during the Battle of Walkerton while leading a raid on the Confederate capital of Richmond, Virginia.