Joel Untersee (born 11 February 1994) is a South African footballer who currently plays as a defender for Empoli.
Born in Johannesburg, South Africa, of Swiss descent, Untersee moved to Switzerland at a very young age and opted to represent Switzerland at various youth levels internationally. Following his move, Untersee joined the youth academy of FC Zürich, where he would eventually remain until 2010, before transferring to Italian giants, Juventus Football Club during the 2010–11 season.