Tymoteusz "Timothee" Adamowski (March 24, 1858 – April 18, 1943) was a Polish-born American conductor, composer, and violinist. Born in Warsaw, he studied in that city's conservatory, later moving on to further studies in Paris. He served as the first conductor of the Boston Pops Orchestra. Tymoteusz was the uncle of Polish Olympic hockey player Tadeusz Adamowski and the humanitarian Helenka Adamowska Pantaleoni.