The Neckar is a German river in the Bade-Wurtemberg, affluent of Right Bank of the the Rhine. Its length is of 367 km.

Neckar takes its source with Schwenningen (district of Villingen-Schwenningen), with the Eastern margin of the Black Forest, to 706 m of altitude. It runs out initially towards north, crosses the towns of Tubingue, Stuttgart and Heilbronn. Then it is directed towards the west and crosses Heidelberg where its medium flow exceeds 130 m3/s before being thrown to Mannheim in the Rhine to 95 m of altitude.

Neckar sprinkles a surface of 14.000 km ², that is to say the central part of Bade-Wurtemberg.
Thanks to its 27 locks, Neckar is navigable (since 1968) out of 200 km since Plochingen in the east of Stuttgart to its mouth. River ports are with Mannheim, Heilbronn, Stuttgart and Plochingen.

Some affluents: Wire, Rems, Murr, Enz, Sulm, Kocher, Jagst, Elz, Glatt.

Simple: Neckar