Katrin Apel (born 4 May 1973 in Erfurt) is a retired German biathlete.

Apel now resides in Gräfenroda, and is a member of the SV Eintracht Frankenhain club.

However, when Apel failed to qualify for the Olympics in Lillehammer in 1994, she made the decision, along with her friend and then training partner Steffi Kramer, to switch to biathlon.

In that season Apel placed 13th in the individual, 4th in the sprint, 4th in the pursuit, and 12th in the mass start.

Apel has ten World Championship medals, four gold, five silver, and one bronze.