Some of the notable people from Kalongo past and present are:
- Deputy Chief Justice Owniny Dollo also former member of parliament Agago
- Hon. Anthony Okelo Opwa, the second Luo speaking Acholi (a Catholic) to enter Makerere College 1931 -1933 after Ericka Lakor (a Protestant) 1926-1929. He was appointed treasurer of Acholi district and later elected to represent Acholi district in the LEGCO.
- Hon. Jino H. Obonyo (a Catholic) former member of parliament for Agago and one of the member for the constitutional conference in London.
- Dr Ambrosoli who was dedicated and an inspirational missionary in Kalongo and the Acholi sub region,
- Hon. Prof. Dr. John Joseph Otim (a Catholic) former member of parliament for kitgum East (Agago), Cabinet Minister (1980-1985) currently Senior Presidential Avisor – Agrculture.
- Hon. Prof. Ogenga Latigo current member of parliament Agago North and former leader of the opposition
- Hon. Franca Akello Women MP Agago
- Hon. Odonga Otto MP
- Hon. Otto Markmot MP Agago south
- Hon. Peter Okwera former member of the constituency Assemebly
- Hon. Miss Lowila women MP Pader district
- Hon. John Amos Okot former MP Agago
Other prominent and respectable sons and daughters of Kalongo through their service and dedication to the mission and people include:
- Father. Malandra
- Mrs Anne Jane Otim
- Sister Eleta
- Sister Kamila
- Brother Angelo
- Mr Marcelo (renowned famer and agriculturalist)
- Jino Owiny who served the mission for over 50 years
- Mr Micheal Ojwang
- Mr Albino Okello
- Mr Nicholas Opiyo
- Mr Paulo Akera
- Mr Eture Iboto
- Mr John Oyaro (Head Master)
- Mr Kamilo Oyaro
- Mr Benjamin Omara
- Dienicio
- Catechists and other prominent people from Kalongo, Kitgum, Patongo, Pader, Paimol, Gulu, other parts of Uganda and indeed the world.