Pepin (born c. 815) was the first count of Vermandois, lord of Senlis, Peronne, and Saint Quentin. He was the son of King Bernard of Italy and Cunigunda.
Pepin first appears in 834 as a count to the north of the Seine and then appears as same again in 840. In that year, he supported Lothair I against Louis the Pious.
Pepin's wife is unknown, but his heir inherited much Nibelungid territory and so historian K. F. Werner hypothesised a marriage to a daughter of Theodoric Nibelung. Their children were: