Masha and the Bear (Russian: Ма́ша и Медве́дь, romanized: Másha i Medvéd', pronounced [ˈmaʂə ɪ mʲɪdˈvʲetʲ]) is a Russian preschool comedy animated television series created by Oleg Kuzovkov and produced by Animaccord Animation Studio, loosely based on the oral children's folk story of the same name. The series focuses on the adventures of a very young girl named Masha and a bear (whom she dubs "Mishka"), her caring friend who always keeps her safe from disasters.

Masha and The Bear is the most watched preschool series in the world, with 36 times more requests than the average. It is also the fifth most-watched youth series (0–18) worldwide, just ahead of Peppa Pig.

Many of the episodes have been successful on YouTube. In particular, the original Russian-language version of the episode "Recipe for Disaster" (Russian: Маша плюс каша, romanized: Masha plyus kasha) has almost 4.5 billion views as of April 2022, making it the site's fourteenth most viewed video of all time, and the most viewed video on YouTube that is not a music video.

The show was first launched on January 7, 2009, and it was the first Russian-produced animated TV show to be released in 4K.

The show provides the basis for the Masha and The Bear Land of Laughter, an area with attractions aimed at younger children at the theme park Land of Legends, near Antalya, Turkey.