|Competitor for 22x20px Sweden|
|Gold||1956 Stockholm, Sweden||Eventing, individual|
Lars Petrus Ragnar Kastenman (born 15 August 1924 in Bälinge, Södermanland) is a Swedish equestrian and Olympic champion. He won an individual gold medal in eventing at the 1956 Summer Olympics in Stockholm.
One of his favorite hobbies, after riding horses, is hunting.
He is the father to Björn and Mimmi Kastenman. He has 5 grandsons and 1 great-granddaughter.