Lagman is a surname. Notable people with the surname include:
Edcel Lagman (1942–2025), Filipino human rights lawyer and politician
Edcel Greco Lagman (born 1972), Filipino lawyer and politician, son of Edcel Sr.
Fabian Lagman (born 1962), Argentine footballer
Filemon Lagman (1953–2001), Filipino communist and trade unionist
Krisel Lagman (born 1968), Filipino politician, daughter of Edcel Sr.
Michael Odylon Lagman Romero (born 1972), Filipino businessman, politician, philanthropist, military reservist, and sportsman