Markus Ryffel (born 5 February 1955 in Bern) is a former long-distance runner from Switzerland who won the silver medal in the 5000 metres at the 1984 Summer Olympics in Los Angeles.

[1] He also won a silver medal at the 1978 European Championships in Athletics, sharing it with the Soviet Union's Alexander Fedotkin; they both lost just one-tenth of a second to Italy's Venanzio Ortis.

In the 1980 Moscow Olympics, he placed fifth in that distance, losing to the winner, Ethiopia's Miruts Yifter, by 2.1 seconds.

[4][5] Ryffel's final few years as a competitive runner, after the Los Angeles Olympics, were also rather undistinguished.

He placed third in a time of slightly over 14 minutes at 5,000 metres in the European Athletics Cup's B final in Budapest in 1985.