Nelia was an ancient city in Greece.

Nelia may also refer to:

Nelia (butterfly), a genus of butterflies within the Pronophilina subtribe Nelia (plant), a genus of flowering plants in family Aizoaceae Nelia, a common name of Acacia loderi, an Australian plant species Nelia, Queensland, Australia Nelia (film), a 2021 Philippine film

People Nélia Barbosa (born 1998), French paracanoeist Nelia Martins (born 1998), East Timorese runner Nelia Penman (1915–2017), British politician and barrister Nelia Sancho (1951–2022), Filipino activist and beauty queen Nelya Shtepa (born 1960), Ukrainian politician