Are any of the guys from the band system of a down married?

Yes, some members of System of a Down are married. For instance, Serj Tankian, the lead vocalist, is married to Angela Madatyan. Shavo Odadjian, the bassist, is also married. However, the marital status of the other band members, like Daron Malakian and John Dolmayan, can change and may not be publicly updated.