Tennis players at the 1908 Summer Olympics

Jonkheer Roelof van Lennep (Dutch pronunciation: [ˈrulɔfɑn ˈlɛnɛp]; 3 October 1876 – 13 September 1951) was a Dutch male tennis player. He competed for the Netherlands in the tennis event at the 1908 Summer Olympics where he took part in the men's singles and men's doubles competitions (partnering with his brother Christiaan).

Otto Froitzheim (German pronunciation: [ɔto fʀøːtshaɪ̯m]; 24 April 1884 – 27 October 1962) was a German tennis player. He won the singles and doubles titles at the World Hard Court Championships in 1912. He also won an Olympic Silver medal in singles in 1908 and was a finalist at Wimbledon in 1914.