Jonikai is a village in Šilutė District Municipality, in Klaipėda County, Lithuania. Jonikai lies at 53 m above sea level. It has 49 inhabitants (2021). The nearest city is Klaipėda, 36 km to the west. Among the landmarks around are Church of St. Matthew, Veiviržėnai (5.7 km), Švėkšna Synagogue (3.8 km) and Evangelical Lutheran Church in Vanagai (13.0 km). Among the natural features are Jurgaičiai oak (7.3 km).