Last names starting with "M"
- Class of 2006 Kelli Maddigan
- Class of 1960 Janice Mader (formerly Zeisset)
- Shelby Mahu
- Class of 1994 Joanna Mallon
- Class of 1963 Marcia Marden
- Class of 1963 Tom Marden
- Jamie Martin
- Class of 1959 Alice Mcclanahan
- Class of 2016 Liam Mccoy
- Class of 1990 Mike Mccraffrey
- Class of 1961 Colleen McDonald
- Class of 1996 John McGraw
- Class of 1993 Marla Mclendon
- Carl Miller
- Paris Milo
- Class of 1981 Amal Mith (now Almal)
- Santo Monica
- Danielle Mosher
- Class of 1990 Heather Murdock
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About the Riley County High School Alumni Directory
Check out all of the names of the Riley County High School alumni that attended high school in Riley that are listed above. Registering will allow you to join the directory. If you are a former student of Riley County in Riley, Kansas, register now to add your name.