Ryan Scott Lewis (born March 25, 1988) is an American musician and record producer based in Seattle, Washington.

In 2006, Lewis befriended rapper Macklemore on Myspace and soon after became his behind-the-scenes partner, producing, recording, engineering and mixing all of the duo's music and directing the music videos for "Same Love", "Thrift Shop", "And We Danced", "Otherside (Remix)", "Can't Hold Us", "Irish Celebration", "My Oh My", "Victory Lap", "Downtown", "Brad Pitt's Cousin" and "White Walls" and designing promotional graphics.

[4][5] In the same year, Lewis collaborated with Rhode Island–based emcee Symmetry in a self-titled work, released as an LP.

Previously released singles "My Oh My", "Wings", and "Can't Hold Us" were announced to be included on the album – as was the song "Make the Money".

[12] On January 26, 2014, Macklemore performed "Same Love" at the 56th Annual Grammy Awards, where Queen Latifah read marriage vows for 33 couples who lined the aisles, including Lewis's sister, Laura, and her now husband.

[20] On August 19, 2019, Hobo Johnson's song "Subaru Crosstrek XV" was released, which Lewis co-wrote and produced.