Wolfgang Kleff (born 16 November 1946) is a German former professional footballer who played as a goalkeeper.

He joined Borussia Mönchengladbach from amateur outfit VfL Schwerte, where he was not a regular starter, in 1968 to become the leading goalkeeper of the Bundesliga side until injuries forced him to lay-off periods in the late 1970s.

From 1968 to 1976 he did not miss any domestic game of Borussia Mönchengladbach and was able to lift five Bundesliga titles (1969–70, 1970–71, 1974–75, 1975–76, 1976–77) one DFB-Pokal (1972–73) and one UEFA Cup (1974–75) trophy with Die Fohlen.

Kleff won six caps for his country in between 1971 and 1974, the first of which took place in Oslo on 22 June 1971, a 7–1 defeat of Norway in a post-season friendly.

[3] Kleff won the 1972 UEFA European Championship trophy in Brussels and the 1974 FIFA World Cup.