Jan Fryling (October 8, 1891, in Lemberg – March 3, 1977, in New York City) was a Polish diplomat, writer, journalist and president of the Józef Piłsudski Institute of America in the years 1972–1977.

In 1918, he was an editor of the magazine Nowa Gazeta and worked on his law residency at the Appeal Court in Warsaw.

From 1927-1930, he worked for the Polish diplomatic mission in Tokyo (serving as chargé d'affaire ad interim between April and October 1930).

After his return to Poland, he once again worked for the Foreign Ministry and simultaneously, between 1932 and 1936, as a lecturer of diplomacy at the Jan Kazimierz University in Lwów and at the Wyższa Szkoła Wojenna (Higher Military School) in Warsaw.

In October of that year, he was employed by the New York chapter of the Radio Free Europe, for which he would prepare theater and book reviews.