Ivan "Oskar" Jazbinšek (9 August 1914 – 28 June 1996) was a Croatian and Yugoslav footballer of Slovenian descent, who played as a defender.

After a short stint at BSK Beograd, he moved to top club HŠK Građanski Zagreb in 1935.

Jazbinšek played seven times for the Kingdom of Yugoslavia, making his debut for them in an April 1938 World Cup qualification match against Poland.

He was also part of Yugoslavia's squad for the football tournament at the 1948 Summer Olympics, but he did not play in any matches.

He then moved on to become Dinamo's coach and won the Yugoslav Federal League in 1954.