Mayak is a nuclear fuel reprocessing plant.
Mayak (meaning "lighthouse" in Russian) may also refer to:
Radio Mayak, a Soviet/Russian radio station Mayak (film), 2006 Maiac, an urban settlement in Transnistria Mayak Shangina, a peak in Altai Krai Mayak (rocket family), a proposed Ukrainian family of carrier rockets Mayak (satellite), Russian amateur artificial satellite launched in 2017 Mayak, Azerbaijan (disambiguation)
See also
Majak (disambiguation) Maiak (disambiguation)