Prof Hans Pettersson FRSFor HFRSE RSAS (1888–1966) was a 20th century Swedish physicist and oceanographer.

[2] Hans Pettersson studied Sciences at Uppsala University, graduating in 1909.

[6] He then studied atomic physics as a postgraduate at the Institute for Radium Research, Vienna.

He later brought this knowledge to the field of oceanography, and with the help of radium he could determine the age of sediment samples from the bottom of the sea.

Pettersson also wrote many popular scientific texts which helped disseminate progress in oceanography to the general audience.