Birth name: Jahseh Dwayne Ricardo Onfroy
Date of Birth: January 23, 1998
Place of Birth: Plantation, Florida, U.S.
Date of Death: June 18, 2018
Place of Death: Deerfield Beach, Florida, U.S.
Ethnicity: African-Jamaican, possibly other
XXXTentacion, also known as Young Dagger Dick, was an American rapper, singer, and songwriter.
He was the son of Cleopatra Eretha Dreena Bernard Freeman and Dwayne Ricardo Onfroy. As stated here, his mother is Jamaican. It appears that his father is Jamaican, as well.
His surname, Onfroy, can be found in France, England, and Germany, and is also a common name in Jamaica.
XXXTentacion was mainly raised by his grandmother, Collette Jones.
In an interview on 103.5 The Beat, XXXTentacion stated that his ancestry was also Syrian, Italian, and Indian. It is possible that he had French and German ancestry, as well. It is not clear if any of these lineages have been verified/documented.
Source: Death record of XXXTentacion – http://tmz.vo.llnwd.net