Odd Magnus Faltinsen (born 9 January 1944) is a Norwegian mathematician and professor of marine technology.

[1] Faltinsen received the Fridtjof Nansen award for outstanding research in science and medicine in 2011.

[2] Faltinsen is known for his work in hydrodynamics of high-speed vessels and liquid sloshing dynamics.

Faltinsen has developed theoretical and numerical methods for explaining how ships, high speed vehicles, and offshore structures behave in waves.

The so-called STF - Salvesen-Tuck-Faltinsen method to estimate wave induced movements and loads on ships presented in 1970 is still used as an engineering tool to day.