Jasvilaičiai is a village in Pakruojis District Municipality, in Šiauliai County, Lithuania. Jasvilaičiai lies at 94 m above sea level. The nearest city is Šiauliai, 21 km to the west. Among the landmarks around are Hill of Crosses (19.8 km), Šiauliai Cathedral (21 km) and Church of Saint Lawrence in Stačiūnai (5.0 km). Among the natural features are Aukštelkai oak (5.4 km).