Karl Eglseer (5 July 1890 – 23 June 1944) was a general in the Wehrmacht during World War II who commanded the XVIII Corps. He was a recipient of the Knight's Cross of the Iron Cross of Nazi Germany. Eglseer was killed in an air crash in Austria on 23 June 1944, along with generals Thomas-Emil von Wickede and Eduard Dietl.
- Austro-Hungarian Empire and the Austrian Republic
- Karl Troop Cross
- Military Merit Cross, 3rd class with war decoration and swords
- Nazi Germany
- Iron Cross (1939) 2nd and 1st Class
- Knight's Cross of the Iron Cross on 23 October 1941 as Generalmajor and commander of 4. Gebirgs-Division