Below is a list of the known McKinney Independent School District Class of 2013 students who signed athletic letters of intent.
| Name | Sport | College / University | High School |
| Carson Chilton | Baseball | Texas Tech | McKinney Boyd |
| Allison Coleman | Soccer - Girls | Central Arkansas | McKinney Boyd |
| Branson Davis | Golf - Boys | Georgia | McKinney Boyd |
| Bryan Driskell | Football | Air Force Academy | McKinney Boyd |
| Marleigh Essler | Soccer - Girls | Tulsa | McKinney Boyd |
| Dillon Farrell | Soccer - Boys | Ouachita Baptist | McKinney Boyd |
| Micaela Gonzalez | Basketball - Girls | Texas-Tyler | McKinney Boyd |
| Michael Grant | Basketball - Boys | Abilene Christian | McKinney Boyd |
| Julia Hendrieth | Basketball - Girls | Dillard | McKinney Boyd |
| Hailey Hunt | Soccer - Girls | Stephen F. Austin State | McKinney Boyd |
| Kelly Koop | Volleyball | North Florida | McKinney Boyd |
| Daylon Markham | Football | Harding | McKinney Boyd |
| Megan Mollett | Volleyball | Arkansas | McKinney Boyd |
| Anna Scales | Soccer - Girls | Mobile | McKinney Boyd |
| Raul Serrano | Soccer - Boys | Messiah | McKinney Boyd |
| Chris Stanton | Football | Truman State | McKinney Boyd |
| Ryan Trayner | Soccer - Boys | Ouachita Baptist | McKinney Boyd |
| Vincent Whaley | Golf - Boys | Georgia Tech | McKinney Boyd |
| Russell Williams | Baseball | Air Force Academy | McKinney Boyd |
| Sewell Yost | Soccer - Boys | Ouachita Baptist | McKinney Boyd |
| Name | Sport | College / University | High School |
| Jesse Cox | Baseball | Harding | McKinney |
| Garrett Dodd | Baseball | Paris JC | McKinney |
| Connor Fuentes | Football | Southeastern Oklahoma | McKinney |
| Stanton Garcia | Soccer - Boys | SMU | McKinney |
| Emily Marrs | Softball | Mary Hardin-Baylor | McKinney |
| Lizzie Navarette | Soccer - Girls | Midwestern State | McKinney |
| Jonathan Shannon | Football | San Angelo State | McKinney |
| Robert Somborn | Football | Cornell | McKinney |
| Natalie Throneberry | Soccer - Girls | Abilene Christian | McKinney |
| Name | Sport | College / University | High School |
| Jackie Bucy | Girls Soccer | Midwestern State | McKinney North |
| Faith Dixon | Softball | Murray State | McKinney North |
| Chandler Johnson | Softball | Murray State | McKinney North |
| Alexis Mason | Basketball - Girls | Abilene Christian | McKinney North |
| Taylor McAllister | Softball | Texas-Tyler | McKinney North |
| Lexey Wilson | Volleyball | Navarro CC | McKinney North |
