Brunó Ferenc Straub (5 January 1914 in Nagyvárad, Austria-Hungary (now Oradea, Romania) – 15 February 1996) was a biochemist.

As a young scholar he was a research assistant of Albert Szent-Györgyi at the University of Szeged, and subsequently worked at the Molteno Institute, Cambridge, UK.

He was the first to obtain actin in a relatively pure state.

[1] He founded the Biological Research Centre in Szeged.

He was the chairman of the Hungarian Presidential Council from 29 June 1988 to 23 October 1989.