Casemiro Mior is a Brazilian football head coach.
During his career as a footballer, he played for Grêmio, Internacional and Internacional de Limeira.
In 2002, Mior was appointed to be the head coach of Hong Kong.
In 2007, Mior was appointed to be the head coach of Hong Kong League XI to compete in 2007 Lunar New Year Cup. The team finished last after losing both matches after penalty shootout.
At the end of the 2006-07 Hong Kong First Division League season, during which he led South China to the title, Casemiro Mior was awarded the Best Coach of the Year.
He was fired as coach of Portuguese Liga side Belenenses on 7 October 2008.
Hong Kong First Division League Best Coach of the Year
- 3 times (1999-00, 2001–02, 2006–07)