Mainlander may refer to:

• Mainland Chinese
• Waishengren, a term used in Taiwan to refer to mainland Chinese who moved to Taiwan after 1945 and their descendants
• People from Greater Vancouver, used by residents of British Columbia.
• Australians who live on mainland Australia, used by residents of Tasmania.
• Mainland New Zealand people
• People from contiguous United States and Alaska, used by Hawaiians, Puerto Ricans, or residents of overseas U.S. territories
• Canadians who are not from Newfoundland or Vancouver Island, used by residents of those islands
• People from Continental Europe, used by the British
• People from the mainland part of metropolitan France when referred to by Corsicans or people of Overseas France, in French as les continentaux

• Philipp Mainländer