Sir Roger l'Estrange (17 December 1616–11 December 1704) was an English pamphleteer, author and staunch defender of Royalist claims. L'Estrange was involved in political controversy throughout his life. Perhaps his best known polemical pamphlet was An Account of the Growth of Knavery, which ruthlessly attacked the parliamentary opposition, placing them as "dissenting fanatics" and truly beyond the pale.