William Taillefer

William Taillefer may refer to:
 * William Taillefer I (died 962), first to be called William Taillefer
 * William II of Angoulême (died 1028), William Taillefer II
 * William V of Angoulême (died 1120), William Taillefer III
 * William VI of Angoulême (died 1179), William Taillefer IV
 * William VII of Angoulême (died 1186), William Taillefer V
 * William III, Count of Toulouse (975–1037)