Guillermo Antonio Meijón Couselo (born 14 March 1958) is a Spanish teacher, writer, and politician, member of parliament for Pontevedra in the Congress of Deputies during the 10th, 11th, 12th, 13th, and 14th legislatures.

He studied at the Marist School Santa María in Ourense.

After permanently returning with his family to Pontevedra, he began his studies in Philosophy and Educational Sciences at the UNED, where he obtained his degree.

[1] Since 1979, he worked professionally as a teacher and school counselor,[2] although he has been on leave of absence since 2005 under the Special Services Commission.

[3] That year he ran on the socialist list for the Parliament of Galicia and was elected member of parliament for Pontevedra, a position for which he was re-elected in 2009.