In the world, Astrain (Astrain 
) is an extremely rare gender-neutral first name. More frequently, Astrain is the last name as well as the forename.
Mr, Sugey, Aline, Araiz, Amaia, Carla, Cesar, Clara, Berta, Borja, Koldo, Pablo, Petra, Pedro, Pello, Ramon, Rocio, Darcy, David, Diana, Laura, Luisa, Santi, Mikel, Maika, Maite, Ana, Ani, Iã, Sara, Sofi, Cami, Rosa, Ruby, Ruth, Luis, Jaime, Jose, Nati, Esau, Emma, Ines, Ilse, Maria, Mario, Marta, Marco, Mayra, Juan, and Jorge