Arūnas is a masculine Lithuanian given name and may refer to:
Arūnas Bižokas (born 1978), ballroom dancer Arūnas Bubnys (born 1961), historian and archivist Arūnas Degutis (born 1958), politician Arūnas Dulkys (born 1972), economist and Minister of Health Arūnas Eigirdas (born 1953), politician Arūnas Gelažninkas (born 1985), motocross, enduro and rally raid rider Arūnas Jurkšas (born 1972), track and field athlete Arūnas Klimavičius (born 1982), footballer Arūnas Matelis (born 1961), documentary film director Arūnas Mika (born 1970), footballer Arūnas Mikalauskas (born 1997), basketball player Arūnas Pukelevičius (born 1973), footballer Arūnas Savickas (born 1975), retired freestyle swimmer Arūnas Valinskas (born 1966), showman, TV producer and host, and politician Arunas Vasys (born 1943), American football player Arūnas Visockas (born 1965), Lithuanian basketball player