| Ryan Glennon McKenna | |
| State Senate: | Missouri |
| State: | Missouri |
| District: | 22nd |
| Termstart: | 2007 |
| Termend: | 2014 |
| State House2: | Missouri |
| District2: | 102 |
| Termstart2: | 1999 |
| Termend2: | 2006 |
| Party: | Democratic |
| Birth Date: | 27 April 1973 |
| Birth Place: | Barnhart, Missouri, U.S. |
| Alma Mater: | Southwest Missouri State University |
| Children: | 1 |
Ryan Glennon McKenna (born April 27, 1973) is an American politician who served as a Democratic member of the Missouri Senate, representing the 22nd District from 2007 to 2014. He was a previously member of the Missouri House of Representatives from 1999 through 2006.
McKenna has lived in Jefferson County, Missouri his entire life. He graduated from St. Pius X High School in the Twin City area and went on to attend Jefferson College, playing on their State Championship baseball team in 1993. He graduated from Missouri State University (formerly Southwest Missouri State University) in 1996, where he received a Bachelor of Science degree in education.
McKenna's father is William McKenna, who served as a member of both chambers of the Missouri General Assembly.