- White Desert – 1923
- What Price Glory – 1924 – a war drama
- First Flight – 1925 – (with Laurence Stallings)
- Outside Looking In (play) – 1925
- Saturday's Children – 1927
- Gods of the Lightning – 1929 (with Harold Hickerson)
- Gypsy – 1928 –
- Elizabeth the Queen – 1930 – a historical drama in blank verse
- Night Over Taos – 1932
- Both Your Houses – 1933 – Pulitzer Prize for Drama
- Mary of Scotland – 1933 – a historical drama in blank verse
- Valley Forge – 1934
- Winterset – 1935 – New York Drama Critics Circle Award
- The Masque of Kings – 1936
- The Wingless Victory – 1936
- Star-Wagon – 1937
- High Tor – 1937 New York Drama Critics Circle Award
- The Feast of Ortolans – 1937 – one-act play
- Knickerbocker Holiday – 1938 – book and lyrics
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- Second Overture – 1938 – one-act play
- Key Largo – 1939
- Journey to Jerusalem – 1940
- Candle in the Wind – 1941
- The Miracle of the Danube – 1941 – one-act play
- The Eve of St. Mark – 1942
- Your Navy – 1942 – one-act play
- Storm Operation – 1944
- Letter to Jackie – 1944 – one-act play
- Truckline Café – 1946
- Joan of Lorraine (partially written in blank verse) – 1946
- Anne of the Thousand Days – 1948 – a historical drama in blank verse
- Lost in the Stars – 1949 – book and lyrics
- Barefoot in Athens – 1951
- The Bad Seed – 1954
- High Tor – 1956 (TV score)
- The Day the Money Stopped – 1958 – (with Brendan Gill)
- The Golden Six – 1958
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