From Irish 'Ó Dubhghaill' meaning descendant of the dark foreigner.
Doyle arrives from the Irish Gaelic surname Ó Dubhghaill, meaning "descendant of Dubhghall" — a compound of dubh (dark) and gall (stranger or foreigner). The epithet was originally applied to the dark-haired Norse Vikings who raided and settled the Irish coast, distinguishing them from the fair-haired Norwegians called Finngall. Over centuries the name rooted itself so deeply into Irish identity that it became one of the island's most enduring surnames before crossing into use as a given name.
The name's most famous bearer is undoubtedly Sir Arthur Conan Doyle, the Scottish-Irish physician whose creation of Sherlock Holmes in 1887 made him one of the most widely read authors in history. That literary association — a mind of piercing rationalism wrapped in Victorian atmosphere — lends Doyle a certain intellectual mystique. Other notable Doyles include the Irish rebel James Warren Doyle, known as "JKL," a fearless bishop who championed Catholic emancipation in the 1820s.
As a given name rather than a surname, Doyle gained traction primarily in Irish-American communities throughout the twentieth century, carrying with it a proud diasporic identity. It possesses the lean, no-nonsense quality that has made similarly structured Irish transfers — Flynn, Burke, Brady — appealing to parents seeking something rooted but unconventional. In contemporary usage, Doyle reads as quietly strong: a single forceful syllable with centuries of Irish Atlantic history behind it.