Sancho Garcés II (Basque: Antso II.a Gartzez), also known as Sancho II, was King of Pamplona (later known as Navarre) and Count of Aragon from 970 until his death in 994. He was the eldest son of García Sánchez I of Pamplona and Andregoto Galíndez. He recognised the Kingdom of Viguera during his reign.
He is sometimes referred to as Sancho Abarca by modern sources. This appellation was first applied to Sancho II by chroniclers writing centuries after his time who were confused about the succession to Pamplona, creating a single ruler out of the combined careers of Sancho II and his grandfather Sancho I of Pamplona. The weight of evidence suggests that this nickname originally applied to Sancho I.