Ivan Ramljak (born August 9, 1990) is a Croatian professional basketball player currently playing for Poitiers Basket 86 in the French second-tier LNB Pro B.

He began his career in 2007, and made his ABA league debut in the 2009–10 season, when as a 19-year-old he played 10 games for Široki.

In the 2012–13 season Ramljak averaged 7.6 pts, 3.9 reb and 1.1 ass in 24.1 min in the ABA League, while in the Bosnian League he averaged 7.7 pts, 14.5 reb, 1.4 assists in 22 minutes.

[2] On the beginning of the 2015–16 season he signed with Zadar joining his brother Marko in the same team.

His older brother Tomislav (born 1985) and younger brother Marko (born 1993) are also basketball players and have all played in the Croatia national basketball team youth selections.