2011 | 2011 ATP Challenger Tour | Derby | Kentucky Derby | 2011 ATP World Tour | Derby County F.C. | 2011 Rugby World Cup | 2011 ITF Women's Circuit | Epsom Derby | 2011 Tōhoku earthquake and tsunami | 2011 Pan American Games | 2011 Christchurch earthquake | Earl of Derby | Epsom | 2011 Summer Universiade | 2011 Pacific Games | Edward Smith-Stanley, 14th Earl of Derby | Miss Universe 2011 | 2011 Copa América | Eurovision Song Contest 2011 | 2011 WTA Tour | 2011 in radio | Canadian federal election, 2011 | 2011 Southeast Asian Games | 2011 in paleontology | 2011 Cricket World Cup | Joseph Wright of Derby | 2011 World Championships in Athletics | 2011 in music | 2011 FIFA Women's World Cup |
On 4 June 2011, in their first public outing since returning from their Seychelles honeymoon, Prince William, Duke of Cambridge, and his wife, Catherine, Duchess of Cambridge (along with The Queen, William's brother, Prince Harry, and Catherine's parents, Michael and Carole Middleton) attended the 2011 Epsom Derby at the track.