LarsenvsLarssonWhat's the difference?

Which to use

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

#23,888
“Larsen” frequency rank
#27,899
“Larsson” frequency rank
51787
confusion score

Side-by-Side Comparison

Feature Larsen Larsson
Definition A surname from Norwegian [in turn originating as a patronymic] of Danish and Norwegian origin. A surname from Swedish.

Same sound, different letters: Larsen vs Larsson

Muted letters are shared; highlighted letters are the only spelling cue when pronunciation matches. Shared run: 5 letters.

6 ch
Larsen
7 ch
Larsson

Ear matches; page differs - Larsen and Larsson

This is the hard kind. Larsen and Larsson are pronounced identically (/ˈlɑː.sən/) and both work as aname. Neither the ear nor the grammar will rescue you; only the meaning does, so the glosses below are the whole decision. They differ by 1 letter(s) in length. Our composite confusion score for this pair is 51787, derived from the frequency rank of both members and their visual similarity.

Larsen is recorded at frequency rank #23,888, classified as aname, pronounced /ˈlɑː.sən/. Larsson is at rank #27,899, tagged as aname, pronounced /ˈlɑː.sən/.

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 51787, this pair ranks #162,509 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Larsen vs Larsson

Shared letters: alnrs. Private to "Larsen": e. Private to "Larsson": o.

"Larsen" · 6 letters · shape CVCCVC  ·  "Larsson" · 7 letters · shape CVCCCVC

Known mistypes of this pair

  • Larsenalrsen · laresn · larrsen · larsenn · larsne · larssen · lasren · llarsen
  • Larssonalrsson · larrsson · larsosn · larssno · larssonn · lasrson · llarsson · lrasson

Frequently Asked Questions

Is swapping "Larsen" for "Larsson" ever safe?
No. They are pronounced the same (/ˈlɑː.sən/), which is exactly why they get swapped in writing, but the dictionary meanings above are different, and pronunciation is no guide here.
In ordinary English text, does "Larsen" or "Larsson" show up more?
"Larsen" is the more common of the two: it sits at frequency rank #23,888 in our English list, against #27,899 for "Larsson". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Sound matches; spelling doesn't. Use the exits below to lock the right form or check a cousin pair.

  • Full dictionary entry for "Larsen" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Larsson" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #162,509 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Larsen" and "Larsson" also get mixed up with nearby pairs, the highest-scored neighbour is "Larsson vs lasso". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #162,509 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list