Matheus Wilhelmus Theodorus "Theo" Laseroms (8 March 1940 – 25 April 1991) was a Dutch football defender who made a name for himself when he played for Feijenoord.

[3] In 1967, Laseroms signed with the Pittsburgh Phantoms of the newly created National Professional Soccer League while still under contract with Sparta Rotterdam.

He was part of the legendary team that included Eddy Pieters Graafland, Eddy Treijtel, Piet Romeijn, Rinus Israël, Theo van Duivenbode, Franz Hasil, Wim Jansen, Willem van Hanegem, Henk Wery, Ove Kindvall and Coen Moulijn.

[citation needed] Laseroms did an internship at Ajax in Amsterdam in the 1975–76 season before obtaining his training diploma; a team then consisting of players such as Frank Arnesen, Søren Lerby, Tscheu La Ling and Ruud Geels and was coached by Rinus Michels in his second period.

Laseroms then started a less successful coaching career with Heracles, Helmond Sport, Vlaardingen '74, Trabzonspor and clubs from Bahrain and Saudi Arabia, among others.