Km/Km/Wesley High School is a legendary and leading school in Kalmunai Municipal Council. It celebrated its 140^th anniversary on June 29^th, 2023. The Methodist missionaries from England arrived in Weligama, Galle on June 29^th, 1814, and worked hard for the development of education and spirituality throughout the country. Rev. William Ault, one of the missionaries, reached Batticaloa and started eight schools within eight months. Following his efforts missionaries reached Kalmunai in 1847 and started primary schools there.

 In the 18^th century, education for girls had been prohibited. In the 19^th centuary a Methodist priest named Rev. George .J. Trimmer established a Girls’ Boarding School with eighteen girls on November 30^th, 1883 in order to provi

de education for girls. Mrs. Jane Veeracuddy served as both a teacher and a warden, while Mr. S.  Govinder served as a teacher during the same period. Later, this school began to train Pupil Teachers and the first trained pupil teacher was Miss. Mary Sinnathamby from Kurumanvely.  Mrs.Jessie Jesudasan, who was invited to be the first Head Mistress in 1906, served until 1932. Miss Doris Robinson, the first missionary principal was appointed in 1927.Following her Miss. Merchant, Miss. E.J. Turnier and Miss. Barbara Atkins served as principals of the school             

Miss Barbara Atkins (known as Atkins Amma) was a foreign missionary principal in the years 1935, 1936, 1938, and 1939. She has still been the celebrity in the hearts of the people in this area due to her tremendous service and dedication to education. Later on she established Christa Home where she engaged in creative and productive activities. Then, Miss Grace Thillayampalam from Point Pedro became the principal of Girls’ Boading School and served splendidly for ten years.

In 1901, The Methodist priest, Rev. Gabriel Leese founded an English Medium School for Boys in Kalmunai. Later the name was changed to Leese High School.  Though it was a small school it produced lawyers, doctors, and teachers. Swami Vipulananthar, M.H.M. Ashraff and A.R.M.Mansoor were some of the notable past students of this school. In May, 1953 Leese High School and Girls’ Boarding School were amalgamated and was named Wesley High School in honour of the Founder of Methodist Society, Rev. John Wesley.

 Rev. George Nallathamby served as the first principal of Wesley High School from May 1953 to August 1954. Then, Mr. Sam. J. Wilson who started his role of principal in September 1954 but went to England for highest studies. In his absence, Mrs. S. Sinnaiya took over as principal in 1959. Mr. S. J. Wilson returned after completing his studies and he started again his position as principal from 1961 to 1972. The period from 1961 to 1983 was considered as the golden era of Wesley High School due to the great leadership of Wesley High School. Mr. Yogam Veluppillai was a wonderful person who brought the school to prominence in the Eastern Province. Mr. M. Subramaniyam and Mr. S. Mahalingam were the principals of Wesley High School. After the demise of Mr. Yogam Veluppillai Mr. M. Subramaniyam once again assumed duty as principal from November 1983 to 1988. Mr. Vengadachchalam served as a principal for ten years from June 29^th, 1988 to October 31^st, 1998. On the 1^st of November 1998 Mr. Pon. Murugaiyya became the principal. During his period the Special Education Unit for the disabled was established at the school by Deaf Link Institution of Methodist Mission. Mr. Vadivel Prapakaran served as principal exceptionally from 17^th February 2009 to 14^th September 2019 and also he taught the students Botany and Zoology. Now the present principal is Mr. Sellathamby Kalaiyarasan who has been working hard for the development of the school from 15^th September 2019 onwards. It is worth mentioning that Wesley High School was uplifted to the status of a National School on May 17^th, 2021.