Andrew Marlin is an American multi-instrumentalist, songwriter, performer and producer from Warrenton, NC, currently based in Chapel Hill, NC, who has been a member of Mandolin Orange, Watchhouse, and Mighty Poplar.

For years Marlin has been perfecting his craft by playing with a diverse assortment of musicians, including Robert Sledge of Ben Folds Five and various members of The Steep Canyon Rangers, such as Charles Humphries III and Nicky Sanders. Through his career, Marlin has co-founded three separate bands which explored vastly different styles. His first group, Arktype, blended metal and hard acoustic rock with a success rarely achieved in such a fusion. His second band, The Salt Licks, was an acoustic rock trio with heavy inflections of funk, folk and rock. While a member, Marlin wrote scores of songs in various styles and truly began to find his "sound". His third project, The Barefoot Movement, focused on blue grass and folk.

In 2009 he co-founded Watchhouse (formerly Mandolin Orange).