Jonathan Shepherd, a face surgeon and professor at Cardiff University, won the Stockholm Prize in Criminology with his research into bar fights and glass-related injuries.
"Professor Shepherd's crime prevention work involved the development of strategies for preventing serious injuries in connection with violence in bars and nightclubs," a statement announcing the prizes said.
His work compared drink glasses and the different ways they shatter and has "led pubs in the UK to use the glass that causes far fewer injuries," the statement said.
He shared the prize with US professor David Olds, from the University of Colorado, who has developed methods to prevent child abuse.
Olds's research involved sending nurses to visit at-risk young mothers before and two years after their first child was born, resulting in fewer cases of child abuse.
The Stockholm Prize in Criminology was created in 2005 and is financed by foundations in the United States, Sweden and Japan.