Blissville is a geographic parish in Sunbury County, New Brunswick, Canada.

Prior to the 2023 governance reform, for governance purposes it was divided between CFB Gagetown and the local service district of the parish of Blissville, which was a member of Capital Region Service Commission (RSC11).

The parish was probably named in honour of John Murray Bliss, senior justice of the Supreme Court of New Brunswick at the time the Act erecting the parish was passed in 1834 but died before it became effective in January 1835.

Blissville was erected in 1835 from Burton and Lincoln Parishes.

In 1874 Gladstone Parish was erected from the western part of Blissville.

In 1896 the land boundary with Gladstone was completely altered, adding a large area to Blissville; the boundary with Burton was altered along the Nerepis Road.

In 1949 the boundary with Burton was restored to its pre-1896 line.

Blissville Parish is bounded:

• on the north beginning at a point on the eastern bank of the Oromocto River about 1.2 kilometres downstream of the mouth of Shaw Creek, then running south 66º east to the Queens County line;
• on the southeast by the Sunbury County line;
• on the south by the Charlotte County;
• on the west by a line beginning at a point on the Charlotte County about 2.9 kilometres west of the South Oromocto Lake Road, then running north 67º east about 19.2 kilometres to the rear line of grants along the western side of the South Branch Oromocto River, then northerly about 2.2 kilometres along the rear line of grants to the northern line of a grant to Nathaniel Hubbard, which is also the southern boundary of Fredericton Junction, then easterly to the river, then down the South Branch Oromocto River and the Oromocto River to the starting point.

Communities at least partly within the parish; italics indicate a community expropriated for CFB Gagetown

Bodies of water at least partly in the parish:

Islands in the parish:

• Basley Island

Parks, historic sites, and other noteworthy places in the parish.

• CFB Gagetown

Revised census figures based on the 2023 local governance reforms have not been released.

Highways and numbered routes that run through the parish, including external routes that start or finish at the parish limits:

• List of parishes in New Brunswick

45°37′59″N 66°34′59″W / 45.633°N 66.583°W / 45.633; -66.583