English capitalizes generously: it gives a capital letter to languages (English, Finnish), to nationalities (a Finn, an American), to days of the week (Monday), and to months (January). Finnish does none of this. Its rule is narrow and consistent — capitals mark proper names of people and places, and almost nothing else. Everything English treats as a "kind of thing worth a capital" — a language, a nationality, a weekday, a month, a holiday — stays firmly lowercase. English speakers over-capitalize by reflex, sprinkling capitals through the middle of sentences where Finnish wants none. This page drills the reflex out. For the full conventions, see capitalization.
Languages are lowercase
The name of a language is a common noun in Finnish, so it takes no capital: suomi (Finnish), englanti (English), ruotsi (Swedish), saksa (German), ranska (French).
❌ Puhun Suomea ja vähän Ruotsia.
Incorrect — language names are lowercase: puhun suomea ja vähän ruotsia.
✅ Puhun suomea ja vähän ruotsia.
I speak Finnish and a little Swedish.
Here is the trap that catches everyone: the same word is often a country (capitalized) and a language (lowercase), and only the capital tells them apart. Saksa is Germany; saksa is German. Suomi is Finland; suomi is Finnish.
✅ Opiskelen saksaa, koska muutan pian Saksaan.
I'm studying German because I'm moving to Germany soon. (saksa = language, Saksa = country)
The pattern repeats across every country whose name doubles as a language. The capital is reserved for the country alone; the language and the nationality drop it:
| Country (capital) | Language (lowercase) | Nationality (lowercase) |
|---|---|---|
| Suomi (Finland) | suomi (Finnish) | suomalainen (a Finn) |
| Ruotsi (Sweden) | ruotsi (Swedish) | ruotsalainen (a Swede) |
| Saksa (Germany) | saksa (German) | saksalainen (a German) |
| Ranska (France) | ranska (French) | ranskalainen (a French person) |
| Venäjä (Russia) | venäjä (Russian) | venäläinen (a Russian) |
Only the left-hand column — the actual place name — is ever capitalized mid-sentence. Move one column right and the capital is a mistake.
Nationality words are lowercase
Words for members of a nationality and the matching adjectives — suomalainen (Finnish / a Finn), ruotsalainen (Swedish), amerikkalainen (American), italialainen (Italian) — are ordinary nouns and adjectives, so no capital.
❌ Hän on Suomalainen ja hänen vaimonsa on Ranskalainen.
Incorrect — nationality words are lowercase: suomalainen, ranskalainen.
✅ Hän on suomalainen ja hänen vaimonsa on ranskalainen.
He's Finnish and his wife is French.
✅ Ostin italialaista juustoa ja espanjalaista viiniä.
I bought Italian cheese and Spanish wine. (nationality adjectives — lowercase)
The nationality adjectives behave exactly like colour adjectives grammatically — see nationality and colour adjectives.
Days of the week are lowercase
maanantai, tiistai, keskiviikko, torstai, perjantai, lauantai, sunnuntai — all lowercase, wherever they fall in a sentence (except, of course, at its very start).
❌ Nähdään ensi Perjantaina.
Incorrect — weekday names are lowercase: nähdään ensi perjantaina.
✅ Nähdään ensi perjantaina!
See you next Friday!
Months are lowercase
tammikuu, helmikuu, maaliskuu … joulukuu — all lowercase. (They are transparent compounds ending in -kuu, "moon / month," which makes their common-noun status obvious.)
❌ Lomani alkaa Kesäkuussa.
Incorrect — month names are lowercase: lomani alkaa kesäkuussa.
✅ Lomani alkaa kesäkuussa.
My holiday starts in June.
Even holidays are lowercase
This one surprises English speakers most: the names of holidays are common nouns too. joulu (Christmas), pääsiäinen (Easter), juhannus (Midsummer), vappu (May Day) — all lowercase.
❌ Vietämme Joulun mökillä.
Incorrect — holiday names are lowercase as well: vietämme joulun mökillä.
✅ Vietämme joulun mökillä.
We spend Christmas at the cottage.
But the sentence still starts with a capital
None of this cancels ordinary sentence punctuation. A weekday or month that happens to open a sentence is capitalized — because it is the first word, not because of what it is. The moment the same word moves into the middle of the sentence, the capital vanishes.
✅ Maanantaina menen töihin, mutta tiistaina olen vapaa.
On Monday I go to work, but on Tuesday I'm off. (Maanantaina is capitalized only because it opens the sentence; tiistaina, mid-sentence, stays lowercase)
That contrast — Maanantaina … versus … tiistaina … in one breath — is the clearest proof that Finnish capitalizes position, not category.
Why English speakers get this wrong
English capitalization is category-driven: it decided long ago that languages, peoples, days, and months are "important kinds of thing" and awarded them permanent capitals, so an English writer capitalizes them automatically, in any position. Finnish capitalization is proper-name-driven: a capital says "this is the specific name of one particular person or place," and a language or a weekday simply isn't that — suomi is a thing many people speak, maanantai is a day that comes every week, neither is a unique named entity. So the transfer error is not random; it is your English category-instinct firing in a system that only recognizes proper names. The fix is a quick two-part test before you reach for a capital: is this the name of a specific person or place? If yes (Anna, Helsinki, Suomi), capitalize. If it's a language, a nationality, a day, a month, or a holiday, keep it lowercase — no matter how wrong that looks to an English eye. The country-versus-language pairs (Suomi/suomi, Saksa/saksa, Venäjä/venäjä) are gathered in nationality and language.
Key Takeaways
- Finnish capitalizes proper names of people and places only — not categories.
- Languages are lowercase: suomi, englanti, ruotsi, saksa.
- Nationality words are lowercase: suomalainen, amerikkalainen, italialainen.
- Days and months are lowercase: maanantai, perjantai; tammikuu, kesäkuu.
- Holidays are lowercase too: joulu, pääsiäinen, juhannus, vappu.
- Watch the pairs: Suomi (country) vs suomi (language) vs suomalainen (a Finn) — only the country gets a capital.
- A weekday or month at the start of a sentence is capitalized for position, not category.
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Start learning Finnish→Related Topics
- Capitalization: Languages, Nationalities, DaysA2 — Finnish capitalizes sentence starts and proper names only — languages, nationality words, weekdays and months stay lowercase; note Suomi vs suomi.
- Nationality and Language: Suomi → suomalainen → suomiA2 — From a capitalized country name Finnish builds a lowercase nationality word with -lainen/-läinen (suomalainen) and a lowercase language name that is just a common noun (suomi) — both lowercase, unlike English, with the language inflecting like any noun (suomea, suomeksi, suomen kieli).
- Nationality, Colour and Material AdjectivesA2 — Nationalities in -lainen (suomalainen, lowercase), colours mostly in -inen (punainen, sininen), and material adjectives (puinen) — all declining and agreeing.
- Country Names and Their Cases: Suomessa, RuotsiinA2 — Finnish country names — capitalized, often wildly unlike their English forms (Ruotsi, Venäjä, Saksa, Yhdysvallat) — and the three interior locative cases that split English 'in / to / from' apart: inessive -ssa/-ssä, illative -Vn/-seen, elative -sta/-stä, with the exterior exception Venäjällä.