Boylan as a surname may refer to:

• Andrew Boylan, former Irish Fine Gael politician
• Barbara Boylan, American dancer
• Hugh ("Blazes") Boylan, a fictional character in James Joyce's novel Ulysses
• Charles Boylan, Canadian radio broadcaster
• Clare Boylan, Irish author, journalist and critic
• Grace Duffie Boylan, American writer
• Iola Boylan, fictional character on the television series Mama's Family
• Jeanne Boylan, self-taught composite artist
• Jennifer Finney Boylan, transgendered American author
• John Boylan (record producer), American music producer and songwriter
• John Boylan (actor), actor
• John J. Boylan, US Congressman
• Roger Boylan, American writer
• Seán Boylan, retired Gaelic football manager
• Lt. Col. Steven A. Boylan, spokesperson, US Army, Iraq
• Terence Boylan, American singer/songwriter

It may also refer to:

• Boylan Bottling Company
• Boylan Catholic High School