"I Ain't No Miracle Worker" is a song by the American garage rock band, the Brogues, written by Annette Tucker and Nancie Nantz, and released as the group's second and final single on Challenge Records, in November 1965 (see 1965 in music). The composition is now considered a classic of the musical genre of garage rock, and has reappeared on several compilation albums and has been covered by other musical artists. The Brogues' original rendition was musically influenced by their contemporaries on the R&B circuit and the British Invasion.

The Brogues were hurried to record a follow-up single after the regional success of their debut, "Someday". Over the span of a few months, the group's rebellious image and dynamic stage show launched them into prominence on the West Coast. In mid-1965, the band, bolstered by their addition of ex-Ratz lead vocalist Gary Cole, entered Sunset Recorders in Los Angeles to record "I Ain't No Miracle Worker", which was penned by the songwriting duo of Annette Tucker and Nancie Mantz, coupled with "Don't Shoot Me Down". The song's lyrics are about an individual who has no pretensions about himself and confesses in the subdued chorus "I ain't no miracle worker"/"I do the best that I can". The Brogues reworked Tucker's original instrumental arrangement with a jangling Byrds-inspired rhythm section and fuzz-toned guitar melody. The buzzing distorted sound was produced by lead guitarist Eddie Rodrigues's shredded speakers in his amplifier. In addition to the striking guitar motif, the song is also marked by Cole's soulful vocal, Rick Campbell's electric organ interjections, and Bill Whittington's heavy bass line.

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