Tool Last Name: Meaning and Heraldic Roots

The spelling Tool grew out of O'Toole, an Irish surname with a long paper trail. Taken at its root, Tool points to “Descendant of Tuathal ("ruler of the people")”.

Spelling and variants

Tool is listed among the recognised spellings of O'Toole. Before spelling was standardised, one family could appear under several forms. Related forms: Toole and O'Tuathail.

Tool coat of arms

Arms linked to O'Toole and its spellings were granted to individual families; our heraldry team traces which line they belonged to.

Research your Tool family history with a full surname report and painted coat of arms.