Hailles (French pronunciation: [aj]) is a commune in the Somme department in Hauts-de-France in northern France.

Hailles is situated on the banks of the river Avre and by the D90e road, some 10 miles (16 km) southeast of Amiens.

The name probably comes from ‘haie’ (eng: hedge), and has been variously written as Haies or Heilles. During the Franco-Prussian War of 1870, some francs-tireurs, hidden behind the town fired 60 times on a Prussian officer. All missed, he wasn't even scratched. The German troops threatened to burn down the town.

Historical population

Year Pop. ±% p.a. 1793 244 —     1800 300 +3.00% 1806 322 +1.19% 1821 356 +0.67% 1831 368 +0.33% 1836 372 +0.22% 1841 405 +1.71% 1846 470 +3.02% 1851 460 −0.43% 1856 420 −1.80% 1861 416 −0.19% 1866 389 −1.33% 1872 373 −0.70% 1876 372 −0.07% 1881 369 −0.16% 1886 325 −2.51% 1891 336 +0.67% 1896 323 −0.79%	Year Pop. ±% p.a. 1901 268 −3.66% 1906 252 −1.22% 1911 253 +0.08% 1921 152 −4.97% 1926 181 +3.55% 1931 183 +0.22% 1936 201 +1.89% 1946 214 +0.63% 1954 209 −0.30% 1962 226 +0.98% 1968 236 +0.72% 1975 219 −1.06% 1982 263 +2.65% 1990 319 +2.44% 1999 332 +0.44% 2007 426 +3.17% 2012 429 +0.14% 2017 422 −0.33%
Source: EHESS and INSEE (1968-2017)

• Communes of the Somme department

• Hailles on the Quid website (in French)