People with the surname Reilly include: •
Alan Reilly, Irish footballer •
Arch Reilly, American baseball player •
Brandon Reilly (American football), American football wide receiver •
Brandon Reilly (musician), frontman of the band "Nightmare of You" •
Brent Reilly, Australian rules footballer •
Charles Herbert Reilly, English architect •
Charles Nelson Reilly, American actor and director •
David Reilly, American singer •
Dianne Reilly, Australian politician •
Donald Reilly, American cartoonist •
Dorcas Reilly, American chef and inventor •
Edward Reilly (disambiguation), several people •
Frank Reilly (footballer) (1894–1956), Scottish footballer •
Frank J. Reilly, American illustrator and art educator •
Ginny Reilly, American folk singer •
Ike Reilly, American musician •
Jack Reilly (artist) (born 1950), American artist •
James Reilly (disambiguation), several people •
Jim Reilly, Irish drummer •
John Reilly (disambiguation), several people •
Kate Reilly (born 2001), Canadian ice hockey player •
Kelly Reilly, English actress •
Kevin Reilly (disambiguation), several people •
Lawrie Reilly, Scottish footballer •
Leonard Mackenzie Reilly, Canadian politician •
Liam Reilly (1955–2021), Irish singer •
Long John Reilly, American baseball player •
Maggie Reilly, Scottish singer •
Mal Reilly, English rugby league player •
Matthew Reilly, Australian author •
Mike Reilly (disambiguation), or Michael Reilly, several people •
Molly Reilly, Canadian aviator •
Paddy Reilly, Irish singer •
Patrick Reilly (baseball) (born 2001), American baseball player •
Pepe Reilly, American professional boxer •
Paul Reilly (disambiguation), several people •
Pauline Neura Reilly, Australian author and ornithologist •
Rebecca K Reilly, New Zealand author •
Rick Reilly, American sportswriter •
Robert D. Reilly Jr, American rear admiral •
Sean Reilly (disambiguation), several people •
Sidney Reilly, a Russian-born adventurer and Secret Intelligence Service agent •
Terry Reilly (1947–2025), Australian archer •
Thomas Reilly (disambiguation), several people named Thomas, Tom and Tommy •
Tomás Francisco Reilly (1908–1992), American-born Catholic Bishop of San Juan de la Maguana, Dominican Republic •
Trevor Reilly (born 1988), American football player •
Vini Reilly, British post-punk musician •
William K. Reilly, American company director •
Willie Reilly, Scottish boxer ==Fictional characters==