Click Here for the St. Mark CYO website.
| Position | Name | Phone | Email |
| President | Paul Cardone | 210-490-5913 | Email |
| Vice President | Juan Santiago | 210-324-9056 | Email |
| Athletic Director | Chris Schultz | 210-379-2333 | Email |
| Treasurer | Isabel Resendez | 210-497-7093 | Email |
| Recording Secretary | Araceli Dominguez | 210-287-0876 | Email |
| Parish Minister/Chaplin | Sindi Cosgrove | 210-633-6902 | Email |
| Registrar | Michael Whitehurst | 210-403-0234 | Email |
| Track Commissioner | Bobby Marks | 210-495-8179 | Email |
| Basketball Commissioner | Raymond Gonzales | 210-496-9782 | Email |
| Soccer Commissioner | Chad Steinmetz | 210-835-5773 | Email |
| Baseball Commissioner | Ben Reed | 210-771-1056 | Email |
| Volleyball Commissioner | Jessica Vacca | 210-548-5762 | Email |
| Field Director | Ross Robinette | 210-573-9981 | Email |