| Vice Chancellor : | Rear Admiral HGU Dammika Kumara, VSV, USP, psc, MMaritimePol, BSc (DS) |
| Deputy Vice Chancellor (Defence and Administration) : | Brigadier Pradeep Ratnayake RSP USP psc, M Def S, MSc (DRRD), BA (Def Std) |
| Deputy Vice Chancellor (Academic) : | Prof. KAS Dhammika |
Adjutant
Lt Col KP Rohan Kumara RWP RSP psc GR
The Adjutant is an officer from Sri Lanka Army in the rank of Lieutenant Colonel. Adjutant functions under the direction and control of the Vice Chancellor and he is the Executive Officer to the Vice Chancellor.
Adjutant is responsible for maintenance of discipline in the University and in charge of all ceremonial matters of the University. Adjutant is also responsible for ensuring the security of the University and responsible for preparation and implementation of Standing Orders. Adjutant is responsible for the safe custody and control of weapons, ammunition and explosives.
Administrative and Logistics Support Staff
| Co – Administration | Lt Col R T Ganegoda SLE |
| Officer Commanding University Services | Major SSL De Silva SLAC |
| Assistant Adjutant | Major KPDI Jayathilaka |
| Officer Commanding Defence Company | Capt MMMJ Husain |
| Motor Transport Officer | Lcdr MPSSU Senavirathna |
| Dental Officer | Gp Capt CV Kadawarage |
| University Medical Officer | Dr. SWS Somaweera MBBS(COL) DFM(COL) pgDCP(COL) |
| Ground Maintenance Officer | Capt KP Wijeweera |
| Project Officer | Major BAP Perera |
| Legal Officer | Major HRC Samantha |
| Audit & Account Officer | Major RPRR Harison |
| Logistic Officer | Capt KGSC Wijesingha |
| OCLS (Officer Commanding Logistic Service) | Lcdr WMYN Wanigasekara |
| Supply Officer | Lcdr AM Wickramage |
| Mess Manager – Officers’ Mess | Lt WWND Fernando |
| Procurement Officer | Sqn Ldr – TEA Indrajith |
| Internal Auditor | Mr. NMKS Ranjith |
| Museum Curator | Mr. AA Manjula Karunathilaka |
| Landscape Curator | Mr. P Umesh Kumara |
Contribution of Tri Services Personal to the University
As a defence university, officers and other rankers from all three services contribute to the academic and administrative activities of General Sir John Kotelawala Defence University. There are officers attached to administrative positions, and some of the officers hold academic posts at the university, including positions such as dean of the faculty.
Military Officers
There are a total of 212 academic positions held by military personnel. They contribute by teaching specialized defense and strategy subjects, contributing to refining military education curriculum, serving as mentors fostering leadership skills and collaborating on defense research and publications. All in all, military officers holding academic positions contribute similar to their civilian counterparts to the academic activities of the university. There are 33 senior military staff officers hold senior academic positions in all campuses of KDU of which 20 senior officers are females.
| S/N | SERVICE | STATUS | KDU – RATMALANA | UH KDU | SOUTHENR CAMPUS | METROPOLITAN CAMPUS | TOTAL |
| 01 | ARMY | Mil Employees | 61 | 49 | 09 | 02 | 121 |
| 02 | NAVY | Mil Employees | 60 | 04 | 01 | 00 | 65 |
| 03 | AIR FORCE | Mil Employees | 18 | 07 | 01 | 00 | 26 |
| GRAND TOTAL | 139 | 60 | 11 | 02 | 212 | ||
Other Rankers
Other rankers attached to the university contribute to various activities at the university. There are 1286 personnel attached to different faculties and units. They have a key role in guiding students, promoting physical fitness, and instilling discipline among the students. The presence of these military personnel greatly impacts the university community, immensely enriching student life with unique experiences and perspectives.
| S/N | SERVICE | STATUS | KDU – RATMALANA | UH KDU | SOUTHENR CAMPUS | METROPOLITAN CAMPUS | TOTAL |
| 01 | ARMY | Mil Employees | 333 | 156 | 96 | 02 | 587 |
| 02 | NAVY | Mil Employees | 337 | 189 | 00 | 00 | 526 |
| 03 | AIR FORCE | Mil Employees | 105 | 45 | 23 | 00 | 173 |
| GRAND TOTAL | 775 | 390 | 119 | 02 | 1286 | ||