SBV Excelsior is a professional football club from the Kralingen-Crooswijk district of Rotterdam, Netherlands. It was founded on July 23, 1902 and was formerly known as 'Rotterdamse Voetbal en Atletiek Vereniging Excelsior' (Rotterdam Football and Athletics Union Excelsior). The club was relegated from the top Dutch league, Eredivisie in 2007/08, and promoted back to the Eredivisie at the end of the 2009/10 season.

On December 20, 2008, Feyenoord announced not to renew the partnership contract with Excelsior due to financial and flexibility reasons.However, only five months later, Feyenoord and Excelsior agreed on an even more extensive partnership. As part of the new agreement, the clubs started a joint regional youth academy called Feyenoord Academy and merged the club's reserve teams. Also, Excelsior continued to be Feyenoord's feeder club. Excelsior's managing director Simon Kelder was pleased with the new extensive partnership: "I already regretted the earlier withdrawal of cooperation from Feyenoord, but now we get something better in return. It doesn't only reduces the costs, but I am also convinced both clubs will benefit on sportive grounds."

A majority of the Excelsior fans have always been against a partnership with Feyenoord. Michel van der Neut, chairman of Excelsior's supporters club, claimed: "Excelsior sold her soul with the extended partnership. Excelsior simply stops existing this way."