In the 2008 season, Hovhannisyan played for the club Patani, which assembled youth team players up to age 17.
[2] On 12 July 2011, he made his debut in the Champions League match against Czech club Viktoria Plzeň, which ended in a 4–0 defeat for Pyunik.
[3] On 16 January 2018, FC Alashkert announced that Hovhannisyan joined the club on a contract expiring on 1 August 2020.
On 11 January 2020, Hovhannisyan joined FC Kairat of the Kazakhstan Premier League on a two-year contract.
[9] Hovhannisyan made his debut for the Armenia national team on 28 February 2012 in a friendly match against Serbia.