Harihara is a Hindu deity that combines the two major gods Vishnu (Hari) and Shiva (Hara).
My birth name is Lakshmi Narayana.
Literally, Lakshmi's husband Narayana.
Narayana aka Vishnu aka Hari.
My wife's name is Gouri.
Gouri is manifestation of Parvati whose husband is Shiva.
Shiva aka Hara.
Hence, I am Harihara.
Brouhaha!