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- Painted Dreams (1930-1938?)
- The Passing Parade (1938–1949)
- Pat Novak for Hire
- Pat O'Daniel and His Hillbilly Boys (1930s)
- Paul Harvey (1950–present)
- The Paul Whiteman Hour (1927–1954)
- The Pause That Refreshes (1934–1948)
- People Are Funny (1942–1960)
- The People’s Platform (1938–1952)
- Pepper Young's Family (1936–1959)
- The Perry Como Show (1943–1955)
- Perry Mason (1943–1955)
- Pete Kelly's Blues (1951)
- The Phil Cook Show (1930–1952)
- The Phil Harris-Alice Faye Show (1948–1954)
- Phil Hendrie Show
- The Philadelphia Symphony (1932–1957)
- The Philip Morris Playhouse (1939–1953)
- Pick and Pat (1934–1945)
- Planetary Radio (2002–present)
- Planet Mikey (2005–present)
- The Playhouse (2000–present)
- Poets Cafe (2002-present)
- Police Headquarters (1932)
- Portia Faces Life (1940–1951)
- Pot o' Gold
- A Prairie Home Companion (1974–present)
- The Preston and Steve Show (1999-February 2005, May 2005–present)
- Problem Corner
- Professor Quiz (1936–1948)
- Proudly We Hail (1947–1957)
Read more about this topic: List Of U.S. Radio Programs