Boland's father, Frederick Boland, was a career diplomat and her mother, Frances Kelly, was a noted painter. She was born in Dublin in 1944.
When she was six, Boland's father was appointed Irish Ambassador to the United Kingdom; the family followed him to London, where Boland had her first experiences of anti-Irish sentiment. Her dealing with this hostility strengthened Boland's identification with her Irish heritage. She spoke of this time in her poem, "An Irish Childhood in England: 1951".
At 14, she returned to Dublin to attend Holy Child School in Killiney.[5] She published a pamphlet of poetry (23 Poems) in her first year at Trinity, in 1962. Boland earned a BA with First Class Honors in English Literature and Language from Trinity College Dublin in 1966.