O'ConnellvsO'DonnellWhat's the difference?

Which to use

“O'Connell” and “O'Donnell” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#19,920
“O'Connell” frequency rank
#18,378
“O'Donnell” frequency rank
38298
confusion score

Side-by-Side Comparison

Feature O'Connell O'Donnell
Definition A surname from Irish. A surname from Irish.

Letter map: O'Connell vs O'Donnell

Shared letters muted; letters that set O'Connell and O'Donnell apart highlighted. Shared run: 8.

9 ch
O'Connell
9 ch
O'Donnell

Spelling & Dictionary Insight

O'Connell and O'Donnell are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by a single letter - c in “O'Connell” becomes d in “O'Donnell”. Our composite confusion score for this pair is 38298, derived from the frequency rank of both members and their visual similarity.

O'Connell is recorded at frequency rank #19,920, classified as aname. O'Donnell is at rank #18,378, tagged as aname.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 38298, this pair ranks #287,137 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of O'Connell vs O'Donnell

Shared letters: elno. Private to "O'Connell": c. Private to "O'Donnell": d.

"O'Connell" · 8 letters · shape VCVCCVCC  ·  "O'Donnell" · 8 letters · shape VCVCCVCC

Frequently Asked Questions

Can "O'Connell" and "O'Donnell" be used interchangeably?
No. They differ by a single letter - c in “O'Connell” becomes d in “O'Donnell”, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Which is more common, "O'Connell" or "O'Donnell"?
"O'Donnell" is the more common of the two: it sits at frequency rank #18,378 in our English list, against #19,920 for "O'Connell". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list