Nader Mashayekhi (Persian: نادر مشایخی; born November 26, 1958 in Tehran) is an Iranian composer. From 2006 to July 2007 he was conductor of the Tehran Symphony Orchestra. He is the son of Jamshid Mashayekhi.
In the 1990s he was music director of the Austrian new music ensemble "Wien 2001".
His works have been performed by Klangforum Wien (1992–95), Ensemble Work in Progress, Berlin (1993), Ensemble Zwischen Töne, Berlin (1997–2000), Savarian Symphony Orchestra (1997), Radio Symphony Orchestra, Vienna (1998), and the Tehran Symphony Orchestra (1998–2000).
- Rezapoor, Manijeh (16 February 2020). "Maestro Nader Mashayekhi impressed with youth participation in Fajr festival". The Tehran Times.
- "Iranian composer Nader Mashayekhi to discuss experimental film and music". Tavoos Art Magazine Website. 30 June 2014.