La Ondo de Esperanto (English: The Wave of Esperanto) is an illustrated Esperanto periodical published monthly in the Russian Baltic Sea enclave of Kaliningrad (formerly Königsberg).
The publication inherits its name from a magazine of the same title published from 1909 to 1921 by Aleksandr Saĥarov. Since its revival in 1991 more than 120 issues have been produced. Each issue has about 20 to 30 articles — some brief, others lengthy — on Esperantist activities throughout the world. A free literary supplement is bound into each year's December issue. Issues are typically 24 pages in A4 format, with numerous pictures and illustrations.
In "Tribuno", La Ondo de Esperanto's popular letters column, readers discuss current problems of the Esperanto community. Each issue contains stories and/or poetry, some written in the planned language Esperanto, others translated from various other languages. In cooperation with the European Esperanto Union, each month's issue includes that federation's Eŭropa Bulteno (European Bulletin) as well.
The magazine contains linguistic and historical articles and many reviews of newly published Esperanto literature and music. Many readers enjoy the "Mozaiko" section with its quizzes and competitions as well as humorous and easy-reading pieces. Columnists Alen Kris and "Komitatano Z" (Committee member Z) comment on events in the outside world or inside the Esperanto world. In November 2004 the magazine began a new column on autonomous regions within nation states, such as Russia's North Ossetia–Alania and Spanish Catalonia.