Alpha 5 is a science fiction anthology edited by American writer Robert Silverberg, first published in 1974.

• Introduction by Robert Silverberg
• "The Star Pit" by Samuel R. Delany
• "Baby, You Were Great" by Kate Wilhelm
• "Live, From Berchtesgaden" by George Alec Effinger
• "As Never Was" by P. Schuyler Miller
• "We Can Remember It For You Wholesale" by Philip K. Dick
• "Yesterday House" by Fritz Leiber
• "A Man Must Die" by John Clute
• "The Skills of Xanadu" by Theodore Sturgeon
• "A Special Kind of Morning" by Gardner R. Dozois

• Goodreads listing for Alpha 5
• MIT Science Fiction Society's Library Pinkdex Entry for Alpha 5