Happy Bivouac (officially Happy Bivouac on the Hillary Step) is an album released by Japanese band the pillows on December 2, 1999. It marks the band's first record with Jun Suzuki on bass. As with its predecessor Runners High, several songs from the album were used for the anime series FLCL.

Happy Bivouac contains several references to the American band Pixies. Track 8 is named after Pixies bassist Kim Deal and at the end of "Back Seat Dog", the pillows can be heard singing the chorus of "Here Comes Your Man" from the album Doolittle.

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