Rocco Guerrini (Latin - Rochus Quirinus; German - Rochus, Graf zu Lynar; 24 December 1525, Marradi - 22 December 1596, Berlin-Spandau) was an Italian military engineer, most notable for his work on the Spandau Citadel, which was completed in 1594.
He used the title count of Linari (Marradi) from 1571 onwards and founded the German line of the Linari family, known as the Lynar line.