Robby De Sá is a producer, songwriter, and multi-instrumentalist from Potchefstroom in South Africa.

Based in Sydney, he has worked with many artists, songwriters and producers including The Veronicas, MAY-A, Gretta Ray, Busby Marou, Mitch James, Tina Arena, Pamela Shayne, 5 Seconds of Summer, and Stan Walker.

Robby co-wrote and released the single "You" in June 2004 which led to the Top 20 hit[7] for the band in Ireland.

[8] As a session musician Robby has performed and toured with Enrique Iglesias, Il Divo, Westlife, Brian Mcfadden, Charley Pride, Shakin Stevens, Delta Goodrem and Ben Mills.

Robby was a co-writer of the song 'Paperthin' which placed second in the 2013 'Vanda & Young Songwriting Competition'[9][10] Robby co-wrote and produced the Tina Arena song Only Lonely (from her album Reset),[11] which featured in a commercial for the 2013 season finale of Australian soap opera Home and away .