Oskar van Deventer (born 1965) is a Dutch puzzle maker.
[1] He prototypes puzzles using
3D printing. His work combines mathematics, physics, and design, and he collaborates at academic institutions.
[2][3][4] Many of his
combination puzzles are in mass production by
Uwe Mèffert and . Oskar van Deventer has also designed puzzles for
Hanayama.