Tournehem-sur-la-Hem (West Flemish: Doornem) is a commune in the Pas-de-Calais department in the Hauts-de-France region of France.

Tournehem-sur-la-Hem is located 10 miles (16 km) northwest of Saint-Omer, at the D217 and D218 road junction, on the banks of the river Hem.

Historical population

Year	Pop.	±% p.a.
1968	835	—
1975	965	+2.09%
1982	1,018	+0.77%
1990	1,069	+0.61%
1999	1,219	+1.47%
2007	1,270	+0.51%
2012	1,423	+2.30%
2017	1,436	+0.18%
Source: INSEE

• The church of Saint Médard, dating from the fifteenth, seventeenth and eighteenth century, now a historical monument.
• The ruins of the 12th-century château which was destroyed in 1542.
• The area also has some windmills, such as the Moulin à vent Bacquet.
• The eighteenth-century château at Guémy.
• The church of Notre-Dame at Guémy, dating from the eighteenth century.
• The ruins of the 13th-century chapel of Guémy on Saint Louis Mount, which has extensive views of the area

The Chemin de fer d'Anvin à Calais opened a railway station at Tournehem-sur-la-Hem in 1881. The railway was closed in 1955.

• Communes of the Pas-de-Calais department

• Farebrother, Martin J B; Farebrother, Joan S (2008). Tortillards of Artois. Usk: The Oakwood Press. ISBN 978-0-85361-679-5.

• Regional Tourist Office website (in French)

• 
  The ruins of the chapel
• 
  at Guémy