Ernst-Joachim Küppers (24 August 1942 – 5 February 2025) was a German swimmer.

[1] He won the silver medal in men's 4×100 metre medley relay.

His father Ernst Küppers and mother Reni Erkens were both also Olympic swimmers for Germany.

Ernst-Joachim Küppers died on 5 February 2025, at the age of 82.

This biographical article related to a German swimmer is a stub.