Bieler Tagblatt is a Swiss German-language daily newspaper, published by Gassmann AG in Biel/Bienne, Canton of Bern. It was established in 1850 under the name Seeländer Bote. Gassmann AG, the publisher of the paper, also publishes the French-language newspaper Journal du Jura. The newspaper's estimated readership in 2013 was 54,000 according to WEMF AG.