"A National Acrobat" is the second song from Black Sabbath's fifth album, Sabbath Bloody Sabbath. It features a distinctive mid-tempo harmonized opening riff, a psychedelic breakdown riff, and a classic Tony Iommi guitar solo.

The song was covered by Metallica on their covers album Garage Inc. It is part of a medley of "Sabbra Cadabra" and "A National Acrobat", which is only listed as "Sabbra Cadabra". The song was also covered in Medieval style by the Estonian band Rondellus, on their tribute album Sabbatum, for voice, fiddle and frame drum. In their version the lyrics are translated into Latin, and the song has been retitled "Funambulus Domesticus" (literally, "Domestic Ropewalker"). The song was also covered by Sopor Aeternus and the Ensemble of Shadows a gothic medieval German band on the limited compilation album "Jekura-Deep the Eternal Forest" and the song has been retitled "Tabor C'alan O'itana" which is the original title -A National Acrobat- inversed.

Comedian Jim Norton frequently uses the song as his walk-on music at live shows and during his first HBO special.