Surfing on Sine Waves is a studio album by the musician and producer Richard D. James under the alias Polygon Window.

[7] The title Surfing on Sine Waves was chosen by Warp founder Rob Mitchell after James mentioned that "loads of people I knew growing up in Cornwall were poser surfers and I didn't wanna hang around with them.

[7] Ned Raggett of AllMusic praised Surfing on Sine Waves as "a great collection of abstract electronic/dance madness, caught somewhere between the driftiness of his more ambient works at the time and the rave-minded nuttiness of 'Digeridoo.

'"[10] Mark Richard-San of Pitchfork wrote, "Catchy, melodic and memorable tracks are what made the Aphex Twin so wonderful at his best; Surfing on Sine Waves has a handful of these, albeit in rough, embryonic form.

[3] Writing for Pitchfork, Andrew Nosnitsky said, "These days, Surfing doesn't get mentioned as often as the louder, more ambitious, 'proper' Aphex records that would follow, but it's easily as refined on a technical level—and maybe even more emotionally rewarding.