Valday or Valdai may refer to one of the following:
*
Valdai Hills
The Valdai Hills (russian: Валда́йская возвы́шенность, Valdáyskaya vozvýshennost'), sometimes referred to as just Valdai (russian: Валда́й, Valdáy), are an upland region in the north-west of central European Ru ...
, an upland region in Russia
*
Valdai Discussion Club
The Valdai Discussion Club is a Moscow-based think tank and discussion forum. It was established in 2004 and is named after Lake Valdai, which is located close to Veliky Novgorod, where the Club’s first meeting took place. In 2014, the managem ...
*
Valday (inhabited locality), name of several inhabited localities in Russia
*
Lake Valdayskoye
Lake Valdayskoye, or Lake Valdai (russian: Валдайское озеро, озеро Валдай, translit = ozero Valdai) is a freshwater lake located in the center of Valdaysky District of Novgorod Oblast in Russia in the middle of the Val ...
(or Lake Valdai), a lake in Novgorod Oblast, Russia
*
Valday (ship), a class of Russian freight ships
{{Disambiguation, geo