Tadeusz Michejda (26 September 1879 in Nawsie - 18 May 1956 in Warsaw) was a Polish physician and politician from the region of Cieszyn Silesia.

Tadeusz Michejda was born to Franciszek Michejda, Lutheran pastor. He graduated from a state gymnasium in Cieszyn and later studied medicine at universities in Kraków, Prague and Vienna. After the graduation worked as a doctor in Vienna and Tuchów, later became a municipal doctor in Sucha Górna.

After World War I was a member of Rada Narodowa Księstwa Cieszyńskego (National Council of the Duchy of Cieszyn) and worked in preparations to hold a plebiscite in Cieszyn Silesia. In 1920 Cieszyn Silesia was divided between Czechoslovakia and Poland. His hometown and the workplace fell to Czechoslovakia and Kiedroń left the Zaolzie area, as he was an active pro-Polish activist; and stayed in Poland, where worked many years in several localities, including Działdowo, as a doctor. He was a senator in the Polish Senate for the National Workers' Party from 1930 to 1935, deputy in the State National Council in 1945-1946 and deputy in the Sejm from 1947 to 1952. Michejda was also a Minister of Health from 1947 to 1951 and a Minister without Portfolio from 1951 to 1952. Michejda was since 1950 a member of the Democratic Party, and a vice-chairman of Polish Red Cross. Tadeusz Michejda died in Warsaw and is buried in Kraków.