Guiscriff (French pronunciation: [ɡiskʁif]; Breton: Gwiskri) is a commune in the Morbihan department in Brittany in north-western France.

Inhabitants of Guiscriff are called Guiscrivites. Guiscriff's population peaked at 5,896 in 1921 and declined to 2,081 in 2020. This represents a 65% decrease in total population since the peak census figure.

Historical population

Year Pop. ±% p.a. 1793 2,786 —     1800 2,695 −0.47% 1806 2,500 −1.24% 1831 2,786 +0.43% 1836 3,153 +2.51% 1841 3,016 −0.88% 1846 3,418 +2.53% 1851 3,570 +0.87% 1856 3,396 −0.99% 1861 3,452 +0.33% 1866 3,531 +0.45% 1872 3,558 +0.13% 1876 3,724 +1.15% 1881 3,754 +0.16% 1886 3,894 +0.73% 1891 4,330 +2.15% 1896 4,594 +1.19% 1901 4,060 −2.44%	Year Pop. ±% p.a. 1906 4,972 +4.14% 1911 5,380 +1.59% 1921 5,896 +0.92% 1926 5,525 −1.29% 1931 5,182 −1.27% 1936 5,063 −0.46% 1946 5,034 −0.06% 1954 4,222 −2.17% 1962 3,740 −1.50% 1968 3,377 −1.69% 1975 2,931 −2.00% 1982 2,734 −0.99% 1990 2,529 −0.97% 1999 2,394 −0.61% 2009 2,339 −0.23% 2014 2,228 −0.97% 2020 2,081 −1.13%
Graphs are unavailable due to technical issues. There is more info on Phabricator and on MediaWiki.org.
Source: EHESS and INSEE (2009–2020)

Historically, the village belongs to Cornouaille. The village centre is located 21 km (13 mi) north of Quimperlé and 35 km (22 mi) east of Quimper.

• 
  The parish church
• 
  Chapel Saint Maudé
• 
  Chapel Saint Eloi
• 
  Chapel Saint Antoine
• 
  Chapel Saint Tugdual

• Communes of the Morbihan department

• Base Mérimée: Search for heritage in the commune, Ministère français de la Culture. (in French)
• Mayors of Morbihan Association (in French)