Heldalsmo is a settlement in Froland Municipality, in Agder, Norway. Heldalsmo lies at 218 m above sea level, 11.8 km from the Setesdalsheiene mountains. The nearest city is Arendal, 23 km to the southeast. Among the landmarks around are Åmli Church (15.7 km), Holt Church (20 km) and Trinity Church (24 km).