1954) is a Belgian mathematician and historian of mathematics specializing in the field of quadratic forms and linear algebraic groups.

[1] He is a full professor emeritus at Université catholique de Louvain.

[2] Tignol was awarded a PhD (1988) at the Université catholique de Louvain for his thesis Involution bodies of finite rank at their center and with characteristic other than 21 written under the supervision of Jacques Tits.

[1] In 1996, he was invited by the European Congress of Mathematics in Budapest to speak on "Algebras with involution and classical groups".

"[5] In 1994 he was awarded the Eugene Catalan Prize by the French Academy of Sciences in Belgium.