Ivan is a given name that can refer to:
- Ivan Volkov, a Beater for the Bulgarian National Quidditch team during the 1994 Quidditch World Cup
- Ivan Renshaw (I), a student at Hogwarts in the 1980s and 1990s
- Ivan Renshaw (II), a student at Hogwarts in the 1990s
It is the Slavic cognate of the English John.