2001 census may refer to a census covered by:

• Census in Australia#2001
• 2001 Bangladesh census
• 2001 Bolivian census
• Canada 2001 Census
• 2001 census of Croatia
• 2001 Census of India
• Lithuanian census of 2001
• 2001 Nepal census
• 2001 New Zealand census
• South African National Census of 2001
• Ukrainian Census (2001)
• United Kingdom Census 2001