"Sunshine Superman" is a song written and recorded by Donovan. The "Sunshine Superman" single was released in the United States through Epic Records (Epic 5-10045) in July 1966, but due to a contractual dispute the United Kingdom release was delayed until December 1966, where it appeared on Donovan's previous label, Pye Records (Pye 7N 17241). The "Sunshine Superman" single was backed with "The Trip" on both the United States and United Kingdom releases. It has been described as "[one of the] classics of the era," and as "the quintessential bright summer sing along".

"Sunshine Superman" reached the top of the Billboard Hot 100 in the United States, and subsequently became the title track of Donovan's third album, Sunshine Superman. Chart positions were No. 1 (US), and No. 2 (UK) (the single was released in December 1966 in the UK). It was Donovan's only single to reach No. 1 on Billboard's Hot 100 survey. A different mix of "The Trip" (without harmonica) is also included in the album. It was the first product from the highly successful three-year collaboration between Donovan and producer Mickie Most and is generally considered to be one of the first examples of the musical genre that came to be known as psychedelia. The song features styles of psychedelic folk,psychedelic pop and folk rock.

Jimmy Page and John Paul Jones, later of Led Zeppelin, play on the recording.

Writer Grant Morrison referenced the song in an issue of Animal Man by creating Sunshine Superman, an African American version of Superman who was a member of the Love Syndicate of Dreamworld, from a world based on the drug culture of the 1960s. Sunshine Superman and his world were wiped out by the Crisis on Infinite Earths, only to be brought back by the Psycho-Pirate before fading away again. Sunshine Superman returned for a brief, non-speaking cameo in Final Crisis #7, in an army of alternate Supermen. More recently, it has been resurrected in the New 52 DC Multiverse as Earth-47, still with an iteration of Sunshine Superman and the Love Syndicate A small excerpt of the song is featured in a season 8 episode of the television drama Criminal Minds.

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