Jack H. Chadirdjian is a politician, an attorney, and a City Councillor in Montreal, Quebec, Canada.
He was elected to Montreal's City Council as a Vision Montreal candidate in the district of Darlington in 1994, defeating RCM incumbent Hubert Simard.
In 1997, he left Vision Montreal and sat as an Independent. With five other colleagues, he joined Jacques Duchesneau's Nouveau Montréal (New Montreal) party and became Leader of the Opposition.
In 1998 he was defeated by Vision Montreal candidate Jean Fortier.