Tata was an Elf of Cuiviénen, best known as the second Elf to be awakened at Cuivienen before the First Age.
Tata was awakened by Imin, who woke him after he himself was awoken by Ilúvatar. He awoke a group of Elves who took him as their lord. It is unknown why he wasn't chosen to be his peoples' ambassador to Valinor, nor why he didn't become their first king.
Tata's fate is unknown, but it is presumed that he lived immortally. His folk later became the Noldor. His wife was Tatië.