CEVNI (Code Européen des Voies de la Navigation Intérieure)  is the Code for Navigation on Inland Waterways (rivers, canals and lakes) in Europe and covers most of Europe. Excepted from the code is United Kingdom, the Nordic countries, Spain, Italy and the Balkans except Croatia, all having their own regulations.

CEVNI contains the core uniform rules applicable to the traffic on inland waterways, such as visual signs on vessels, sound signals and radiotelephony, waterway signs and markings, rules of the road, berthing rules, and prevention of pollution of water and disposal of waste.