Memel is the name for both a town and a river (the same river in the neighboring country has the name Nemunas/Neman River and Njemen in Russia). Memel was derived from the Couronian-Latvian language: memelis, mimelis, mēms and means mute, silent. It may refer to:
- Memel, a city in East Prussia, Germany, now known as Klaipėda, part of Lithuania
- Memelburg, the Ordensburg in Memel, a castle built in 1252 by Teutonic Knights which was the nucleus for the city
- Memel Territory (Memelland), the area separated from Germany by the Treaty of Versailles, later called Klaipėda Region
- Battle of Memel, a siege of the city, from late 1944 to early 1945.
- Neman River (German Memel), part of a river in East Prussia, Germany, mentioned in the Deutschlandlied (1841) as the eastern border of Germany
- Nemunėlis River (German Memele, Latvian Mēmele)
- Memel, Free State, a village in the Free State Province of South Africa, named after the city
- SS Memel, a German cargo ship in service 1934–45