Nader Mashayekhi (Persian: نادر مشایخی) (born November 26, 1958 in Tehran) is a Persian composer. Since 2006 until July 2007 he was conductor of Tehran Symphony Orchestra.
In 1990s he was music director of an Austrian new music ensemble named "Wien 2001".
Nader Mashayekhi studied at University of Music in Vienna and his teacher was Roman Haubenstock-Ramati.
Some of his Works have been performed by Radio Symphony Orchestra, Vienna (1998), Ensemble Zwischen Töne, Berlin (1997-98-99-2000), Klangforum Wien (1992-95), Ensemble Work in Progress, Berlin (1993), Savarian Symphony Orchestra (1997) and Tehran Symphony Orchestra (1998-2000).