Steven Hiroyuki Aoki ( ay-OH-kee, Japanese: [çiɾoꜜjɯki aoki]; born November 30, 1977) is an American DJ and record producer. In 2012, Pollstar designated Aoki as the highest-grossing electronic dance music artist in North America from tours. In 2024, Gold House recognized him as one of the Most Impactful Asians.

He has collaborated with artists such as will.i.am, Alan Walker, Afrojack, LMFAO, Tini, Linkin Park, AGNEZ MO, Iggy Azalea, Grandson, Lil Jon, Blink-182, Taking Back Sunday, Laidback Luke, BTS, Monsta X, Louis Tomlinson, Backstreet Boys, Rise Against, Vini Vici, Lauren Jauregui, and Fall Out Boy and is known for his remixes of artists such as Kid Cudi.

Aoki has released seven studio albums to date, including several Billboard-charting albums. His debut studio album Wonderland was nominated for Grammy Award for Best Dance/Electronica Album in 2013.

In 2019, Aoki published a memoir, Blue: The Color of Noise.

He is the founder of the Steve Aoki Charitable Fund, which raises money for global humanitarian relief organizations.