Nelli Stepanyan () is an Armenian football referee, a futsal player and a retired footballer. She has been a member of the Armenia women's national team.
Stepanyan started her football career in 1991 and played for ëKolejû, a club which had quite high results at the time.
Stepanyan capped for Armenia at senior level during the UEFA Women's Euro 2009 qualifying and in a friendly match against Croatia on 6 November 2007.
After retiring from playing in 2011, Stepanyan became a FIFA referee, serving in both the Armenian Premier League and international matches. She made her international debut as a referee and a fourth official in 2011. She has mainly appeared in women's football matches, but she has also worked as a fourth official in men's Armenian Premier League.