The city of Sidney, Ohio in the United States and a street in Zutphen, Netherlands have been named after Sir Philip. A statue for him can be found in the park at the Coehoornsingel, where in the harsh winter of 1795 English and Hanoverian soldiers were buried who had died while on retreat from advancing French troops. A memorial at the location where he was mortally wounded by the Spanish can be found at the entrance of a footpath at the Warnsveldseweg, southeast of the Catholic cemetery. Another statue of Sidney, by Arthur George Walker, forms the centrepiece of Shrewsbury School's war memorial to alumni who died serving in World War I (unveiled 1924).
Sidney features as a friend of Giordano Bruno and an agent for Sir Francis Walsingham in the historical crime novels of S J Parris.
W. B. Yeats appears to allude to Sidney as a model of the ideal man in his poem "In Memory of Major Robert Gregory" when he calls Robert Gregory "Our Sidney and our perfect man".
Sidney is referenced in the T.S. Eliot's poem "A Cooking Egg", published in his 1920 poetry collection Aras Vos Prec, where Eliot expresses a desire to speak with Sir Philip in heaven.
An extended sketch from Monty Python's Flying Circus (Series 3, Episode 10 "E. Henry Thripshaw's Disease") featured a police officer, disguised as Sir Philip Sidney, finding himself transported to the Tudor era after raiding a pornography shop.