Sean Devereux (25 November 1964 – 2 January 1993) was a British Salesian missionary and aid worker assassinated in Kismayo, Somalia in 1993 while working for UNICEF.

He arrived in Liberia in February 1989 and began teaching work with the Salesian community at St. Francis School in Tappita District, briefly finding himself imprisoned after pleading for the release of a student drafted into the army as a child-soldier.

Devereux then began working with UNICEF in Somalia, where he was assigned to organise relief for the starving, particularly children, in Kismayo, the stronghold of one of many warlords.

After only four months in the country, he was fatally shot in the back of the head by a lone hired gunman while walking near the UNICEF compound on Saturday, 2 January 1993.

Sean was an exemplary staff member and gave his life serving others, in the true spirit of the United Nations.