Assuming it's German, it would be roughly YO-khen
In German, J is pronounced like a Y in English, the ch is about equivalent to J in Spanish ( Juan,Juarez, Tijuana, La Jolla), emphasis on the first syllable. It's short for Joachim.
Jochen Nickel's birth name is Jochen Nickel.
Jochen Kunstler's birth name is Uhlig, Jochen.
Jochen Rindt's birth name is Karl Jochen Rindt.
Jochen Busse's birth name is Joachim Busse.
Pronounce thewlis
Jochen Förster was born in 1942.
Jochen Piest died in 1995.
Jochen Neerpasch was born in 1946.
Jochen Hippel was born in 1971.
Jochen Zeitz was born in 1963.
Jochen Schweizer was born in 1957.
Jochen Schöps was born in 1983.