José María Lassalle Ruiz (born 1966) is a Spanish lecturer, essayist and former politician.

[1] He earned a PhD in Law in 1999 at the University of Cantabria, reading a dissertation titled John Locke y los fundamentos modernos de la propiedad, supervised by Jesús Ignacio Martínez García and dealing with the aforementioned philosopher.

[5] Following a spell as director of the Ministry of Foreign Affairs' Foundation Carolina (2003–2004), he has also worked as lecturer at the Universidad CEU San Pablo, the Rey Juan Carlos University and the Universidad Pontificia Comillas.

[10][11] A member of the 8th, 9th, 10th, 11th and 12th terms of the Congress of Deputies in representation of Cantabria, elected within the People's Party (PP) lists, he renounced to his seat at the Lower House of the Spanish parliament in December 2016.

During his spell at the Casa de las Siete Chimeneas, he faced trouble to pass a Law for Patronage and to get through the debate on the cultural VAT.