Tinglev (German: Tingleff) is a town with a population of 2,783 (1 January 2024) in Aabenraa Municipality in Region of Southern Denmark on the Jutland peninsula in south Denmark. Tinglev is a base for German minority institutions in Southern Jutland, the minority Schleswig Party receiving 18.0% of the town's vote in the municipal elections of 2021.

From 1866 until 1920, Tinglev was part of the Prussian Province of Schleswig-Holstein, and formed a part of Imperial Germany. Notable figures born there include Hjalmar Schacht, a liberal economist who introduced a wide variety of schemes in Germany before and during The Third Reich in order to tackle the effects that the Great Depression had on that country, and was a key player in Nazi Germany's economic steps towards re-armament.

Until 1 January 2007, Tinglev was also a municipality (Danish: kommune) in the former South Jutland County. The municipality covered an area of 326 km (126 sq mi), and has a total population of 10,148 (2005). Its last mayor was Susanne Beier, a member of the Venstre (Liberal Party) political party. The municipality was created in 1970 due to a kommunalreform ("Municipality Reform") that combined a number of existing parishes:

Tinglev municipality ceased to exist as the result of the Kommunalreformen ("The Municipality Reform" of 2007). It was merged with Bov, Lundtoft, Rødekro, and Aabenraa municipalities to form the new Aabenraa Municipality. This created a municipality with an area of 951 square kilometres (367 sq mi) and a total population of 60,151 (2005).

• Hjalmar Schacht (1877 in Tingleff – 1970) a German economist, banker and German politician
• Jane Schumacher (born 1988 in Tinglev) a Danish team handball player
• Line Vedel Hansen (born 1989) a Danish professional golfer, lives in Tinglev

The adventure role-playing game Gerda: A Flame in Winter, developed by Copenhagen-based games studio PortaPlay and published in 2022 by Don't Nod, is set entirely in Tinglev and the surrounding countryside. The game's story was inspired by the life of director Hans Von Knut Skovfoged's half-German, half-Danish grandmother who contributed to the Resistance against the Nazis.

• Aabenraa municipality's official website (in German) - (in Danish)
• Aabenraa tourist offic (in German) - (in Danish)
• Municipal statistics - NetBorger Kommunefakta (in German) - (in Danish)
• Municipal statistics - KMD aka Kommunedata (in Danish)
• Municipal mergers and neighbors: Eniro new municipalities map (in Danish)