- Poltava, Leonid, 1921-19901
- Pritsak, Omeljan1
- Pyziur, Eugene, 1917-19801
- Raeff, Marc1
- Rare Book and Manuscript Library1
- Rubchak, Bohdan1
- Rudnytsky, Ivan L. (Ivan Lysiak), 1919-19841
- Rymaruk, Ihor1
- Samchuk, Ulas1
- Senn, Alfred, 1899-19781
- Sherekh, I͡Uriĭ1
- Shevelʹov, I︠U︡riĭ1
- Shlemkevych, Mykola, 1894-1966
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- Simmons, Ernest J. (Ernest Joseph), 1903-19721
- Simovych, Vasylʹ, 1880-19441
- Slavutych, I︠A︡r, 1918-20111
- Smal-Stocki, Roman, 1893-19691
- Soloviĭ, I︠U︡riĭ1
- Stefanovych, Oleksa, 1900-19701
- Struk, Danylo Husar, 1940-19991