"Splish Splash" is a 1958 song performed and co-written by Bobby Darin. It was written with DJ Murray the K (Murray Kaufman), who bet that Darin could not write a song that began with the words, "Splish Splash, I was takin' a bath", as suggested by Murray's mother, Jean Kaufman. The song was credited to Darin and "Jean Murray" (a combination of their names) to avoid any hint of payola. The song helped to give Darin a major boost in his career, reaching No. 3 on the U.S. pop singles chart. It was Darin's first hit, and in a 1967 interview, Darin claimed that he was so happy about having his first hit that his skin condition cleared up.

Splish Splash was recorded in a session at New York's Atlantic Studios on the evening of April 10, 1958. The personnel on the original recording included Jesse Powell on tenor sax,Al Caiola, Billy Mure on guitar, Wendell Marshall on bass, and Panama Francis on drums.

Original copies of "Splish Splash" (Atco 6117) feature echo in the song. For the reissue (Atlantic Oldies Series 13055), the echo is filtered out.

The lyrics mention several characters from other songs of the period, including "Lollipop", "Peggy Sue", and "Good Golly Miss Molly".

However, in an interview, former classmate Jerrold Atlas claimed that "Miss Molly" referred to Molly Epstein, Darin's former English teacher at the Bronx High School of Science. "She taught him to use the language in staccato notes: short fast, words...She was very fond of Bobby. Bobby told me she sharpened his respect for language".

British comedian Charlie Drake scored a top ten hit with a comedy version of the song in 1958, produced by future Beatles producer George Martin on the Parlophone label. The song was remade in 1979 by Barbra Streisand for her album Wet. It features new lyrics by Streisand and backing vocals from Toto lead singer Bobby Kimball and Chicago keyboardist Bill Champlin.

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