1st Prince was a provincial electoral district of Prince Edward Island, Canada, which elected two members to the Legislative Assembly of Prince Edward Island from 1873 to 1993. It was also used in pre-Confederation colonial elections such as the 1859 election electing two members of the 21st General Assembly of Prince Edward Island.

The district comprised the westernmost portion of Prince County. Communities in the district included Alberton and Tignish.

When the provincial electoral districts were reorganized into conventional single-member districts in 1996, 1st Prince was replaced by the districts of Tignish-DeBlois, Alberton-Miminegash, and West Point-Bloomfield.