Klaus Isekenmeier (born 14 April 1975 in Salzkotten, North Rhine-Westphalia) is a retired German decathlete. His personal best score was 8310 points, achieved in June 1997 in Ratingen.

Year	Competition	Venue	Position	Event	Notes
Representing  Germany
1994	World Junior Championships	Lisbon, Portugal	2nd	Decathlon	7298 pts
1996	Hypo-Meeting	Götzis, Austria	9th	Decathlon	8092 pts
1997	European U23 Championships	Turku, Finland	1st	Decathlon	7926 pts
	World Championships	Athens, Greece	10th	Decathlon	8180 pts
1998	Hypo-Meeting	Götzis, Austria	10th	Decathlon	8135 pts
	European Championships	Budapest, Hungary	9th	Decathlon	8140 pts
	IAAF World Combined Events Challenge	several places	9th	Decathlon	24,511 pts
1999	Hypo-Meeting	Götzis, Austria	6th	Decathlon	8274 pts
	World Championships	Seville, Spain	—	Decathlon	DNF
2000	Hypo-Meeting	Götzis, Austria	—	Decathlon	DNF

• Klaus Isekenmeier at World Athletics