Hallatan was a noble Man of Númenor.
Hallatan was the second child and only son of Cemendur, a descendant of Vardamir Nólimon. His sister was Írildë. As an adult, he owned a large amount of pastoral lands in the Númenórean province of Hyarastorni near Emerië where he herded sheep, and was known as 'Sheep-lord'. He had house that often hosted Aldarion in the days of Tar-Meneldur's time as King of Númenor before he became king, and where the other shepherds of Hyarastorni were known to come to visit. He was married to an unnamed woman and their children were Hallacar and Nessanië. His son came to marry Ancalimë in TA 1000.