The Sri Lanka Signals Corps (SLSC) (Sinhalese: ශ්රී ලංකා සංඥා බලකාය Shri Lanka Sana Balakaya) is a combat support corps of the Sri Lanka Army, responsible for providing military communications, information technology and electronic warfare support. The corps is made up of a signals brigade, nine regular regiments and one volunteer (reserve) regiment. It is responsible for installing, maintaining and operating all types of telecommunications equipment and information systems. It is headquartered at the Panagoda Cantonment.
The Colonel Commandant of the SL Signals is Major General B H M A Wijesinghe USP ndu psc, who is also the Chief Signal Officer of the Sri Lanka Army. Brigadier M.T. Waidyaratne is Commander Signals Brigade, operationally in charge of all units and sub-units in the field.
The flag and cap badge feature Mercury, the winged messenger of the gods, who is referred to by members of the corps as "Jimmy".
Established on October 19, 1943 as a part of the Ceylon Defence Force  it was reformed as a troop of signals February 9, 1950 following the formation of the Ceylon Army in 1949. The initial task of this troop was to provide communications between Army HQ and its branches. In 1949, the Volunteer Signals unit was commanded by Lt Col CR De Silva. By the end of 1950 this troop had 1 Officer and 17 other ranks and their tasks included establishing a signals office at Army HQ, provision of a signal dispatch service, manning a switch board and the construction and maintenance of underground as well as field cables. In May 1951 another Signals Office was established in Diyatalawa to serve the Garrison HQ which was just formed at that time. By October 1, 1951 the troop was raised to a squadron with a strength of 4 Officers and 142 other ranks.
In 1951 formal approval was granted to wear the Royal Signals badges with the additional scroll "CEYLON" on it and to adopt the Royal Signals march Begone Dull Care as the regimental march of the Ceylon Signals Corps and in 1959 the 1st Regiment of the Ceylon Signals was formed with Lt Col DV Brohier was appointed as its first Commanding Officer. In 1962 following the attempted military coup the 2nd volunteer signal regiment was disbanded and its remaining personnel transferred to form the National Service Regiment (NSR).
In 1972 with Sri Lanka proclaiming itself a republic, the Corps was renamed as the Sri Lanka Signals Corps. In 1980 a new Volunteer squadron was raised. The Corps has expanded to a level of a Signals Brigade with integral signals units under HQ Chief Signal Officer at the highest level of command in performing the classic role. The Signals Corps provides support to the combat and support arms by providing communications, electronic warfare and information technology support in the battle field and at the rear. All these signal units and sub-units administratively come under the aegis of the Regimental Centre located at Army Cantonment, Panagoda.
The Corps also runs a School of Signals in Kandy, established on 15 July 1991. The School is currently under the command of Colonel I H M R K Herath USP psc, with Lieutenant colonel R.C. Wijekoon serving as Chief Instructor. The Sri Lanka Army established a Directorate of Information Technology under the Signal Corps on 1 March 2010; its current Director is Brigadier K.M.R.P. Karunathilaka.
- AHQ Independent Signal Squadron
- Independent Composite Signal Squadron
- EW Squadron
- PA Squadron
- LED Squadron
Past command staff
- Lieutenant Colonel DV Brohier - First Commanding Officer, Ceylon Signals Corps
- Lieutenant Colonel Basil R. Jesudasan - former Commanding Officer, 2nd Volunteer Signals, Ceylon Signals Corps & accused conspirator in the 1962 coup d'état attempt
- Major General Piyal Abeysekera (also known as E.P. de Z. Abeysekera) USP, MSc - former Deputy Chief of Staff of Sri Lanka Army
- Lieutenant Colonel Gotabhaya Rajapaksa, RWP, RSP- former Secretary to the Ministry of Defence, Public Security, Law & Order
- Major General W.J.T.K. Fernando psc - former CO, 1SLSC
- Major General C.J. Abayaratna VSV, USP - 1st Colonel Commandant, SLSC, former Signals Brigade Commander & former CO, 1SLSC
- Major General A.M.C.W.B. Senewiratne VSV, USP, psc - 4th Colonel Commandant, SLSC & former CO, 3 SLSC
- Major General Y.S.A. de Silva USP - 5th Colonel Commandant, SLSC, former Sig Brigade Commander & former CO 4 SLSC
- Major General Tuan Fadyl Meedin [[Rana Sura Padakkama - RSP (Twice) Ldmc MMS MIT CSMP M. ISMI] - 6th Colonel Commandant, SLSC, former Chief Signals Officer (CSO), Chief Innovations Officer (CIO), Signal Brigade Commander, Chief Controller- Centre for Research & Development (MOD), Centre Commandant & former CO- 1 SLSC
Order of precedence
- CSO - Chief Signal Officer
- PWV - Parama Weera Vibhushanaya
- WV - Weerodara Vibhushanaya
- WWV - Weera Wickrama Vibhushanaya
- RWP - Rana Wickrama Padakkama
- RSP - Rana Sura Padakkama
- VSV - Vishista Sewa Vibhushanaya
- USP -Utthama Sewa Padakkama
- psc - passed staff college
- ndu - national defense university
- IT - Information Technology
- CS - Cyber Security
- CT - Communication Technology