Daniel Siebert (born 4 May 1984) is a German football referee who is based in Berlin.

Siebert, referee of the club FC Nordost Berlin, has been officiating since 1998.

He was appointed as a Bundesliga referee for the 2012–13 season, and made his first top-flight appearance in the match between Schalke 04 and FC Augsburg on 1 September 2012, issuing three yellow cards.

On 24 October 2014, it was announced Siebert would replace Wolfgang Stark as a FIFA referee in 2015.

[2] Siebert made his international debut on 29 May 2015 when he officiated the 2015 UEFA European Under-19 Championship qualification match between Portugal and Turkey.