Omer Adam was born in North Carolina to an Israeli family living in the United States. On his paternal side, His father Yaniv Adam is of Mountain Jewish (Kavkazi Jewish) descent, whereas his mother is of Ashkenazi Jewish descent. His father was a special forces officer in the Israel Defense Forces who served as deputy commander of the Shaldag Unit and Battalion 202 of the Paratroopers Brigade. His paternal grandfather Shmuel served as a senior commander in the Israel Border Police. He is also related to General Yekutiel Adam and his son General Udi Adam. When Adam was three years old, the family returned to Israel and settled at moshav Mishmar HaShiv’a. Adam grew up in Israel. During his mandatory national service in the Israel Defense Forces, he served in the Technology and Maintenance Corps.