Oromë, the Huntsman of the Valar (Silmarillion)

The Huntsman of the Valar, Lord of Forests, The Great Rider, Oromë was an Ainu, one of the Aratar and the Vala responsible for the hunt.

During the Years of the Trees, after most of the Valar had withdrawn completely from Middle-earth and hidden themselves in Aman, Oromë still hunted in the forests of Middle-earth for the evil creatures Morgoth has created. Oromë discovered the Elves when they first awoke at Cuiviénen and named them the Eldar.

A powerful huntsman, he was active in the struggles against Morgoth. He had a great horn called the Valaróma, its sound feared all Morgoth's creatures and The Dark Lord also. Oromë was riding a great steed named Nahar. Nahar was said to be as brilliant as new snow in daylight, and as glimmering as silver in the moonlight.

(Lotr.fandom)