Old Parliament House or Old Parliament Building may refer to:
- Old Parliament Building, Colombo, Sri Lanka
- Old Parliament Building (Quebec), Canada
- Old Parliament House, Athens, Greece
- Old Parliament House, Bangkok, Thailand
- Old Parliament House, Canberra, Australia
- Old Parliament House, New Delhi, erstwhile seat of the Parliament of India in New Delhi (1927–2023)
- Old Parliament House, Singapore, now known as The Arts House
- Old Parliament House, Sofia, Bulgaria
- Old Parliament House, Stockholm, Sweden
- The first Parliament House, Adelaide was known as Old Parliament House between the 1970s and 1995
