Try to name your baby Velociraptor in Finland and the state will say no. So will “Entropy,” “Uncle,” and — despite what you might expect from a country that gave the world heavy metal Santa songs — “Voldemort.” But offer up “Af,” and Finland’s Names Board will wave it through without blinking.
Finland is one of the last countries in Europe where a government committee reviews what you’re allowed to call your child, and where the calendar itself assigns everyone a second birthday. Between a 2019 legal overhaul and a name-day tradition that stretches back to medieval saints’ calendars, Finnish naming culture is stranger, older, and more tightly regulated than almost anywhere else in the Nordic region — including neighbouring Sweden and Norway, which each abandoned formal approval lists decades ago.
The Law Behind the Name: Finland’s Act on Forenames and Surnames
Every Finnish first name has to clear a piece of legislation most countries don’t bother with: the nimilaki, or Act on Forenames and Surnames. The current version took effect on 1 January 2019, replacing a stricter 1986 law that hadn’t kept pace with a Finland reshaped by immigration, blended families, and shifting ideas about gender and identity.
The reform didn’t deregulate naming so much as modernise it. Parents can now give a child up to four forenames, up from three under the old law. Names no longer have to conform strictly to Finnish linguistic tradition, opening the door to names that reflect a family’s heritage from anywhere in the world. The law’s stated goals are almost bureaucratically tender: safeguard a child’s best interests, protect their identity, and speed up what used to be a slow paper-based approval process through Finland’s Digital and Population Data Services Agency (DVV), which now handles most applications online.
What the law still won’t allow is a name that could cause its bearer clear harm or embarrassment, or one considered unsuitable as a personal name altogether — think trademarks, titles, or straightforward insults. Names are also generally expected not to obviously belong to the opposite gender, though enforcement of that particular rule has loosened considerably as Finland has expanded legal gender recognition in recent years.
Yes to “Af,” No to “Velociraptor”: What Actually Gets Rejected
Every year, Finland’s Names Board (Nimilautakunta) publishes its verdicts, and Finnish news outlets report on them with the same appetite English-language tabloids reserve for royal baby names. The board’s most recent published round, covering 2024, rejected more than 40 proposed names — including Velociraptor, Uncle, Entropy, and Mimers — while approving dozens of others, among them Hamwar, Ecthelion, Piina, and, memorably, the single letter-pair “Af.”
Earlier rounds have turned away Fosforos (“phosphorus”), Alcapone, Wolf, Tuhka (“ash”), Ammu (“shoot”), and Monck, while accepting names that sound almost as unlikely once you know the bar Finland actually applies: not “traditional,” just not harmful. Parents who feel strongly about a rejected name aren’t entirely out of options — a small number of disputes have made it all the way to Finland’s highest administrative court, with mixed results.
It’s a system that looks, from the outside, faintly absurd — a government office weighing in on “Uncle.” But it’s also the same law that’s made Finland notably more welcoming to non-Finnish names than it was a generation ago, which is precisely the balancing act the 2019 reform was built to strike.
Nimipäivä: A Second Birthday for (Almost) Everyone
Naming a child in Finland isn’t just a legal event — it’s an entry into a 500-year-old calendar system. Nimipäivä, or name day, assigns a date to a specific set of first names, and Finns with a listed name celebrate it much like a second birthday: cards, small gifts, sometimes cake at the office.
The tradition traces back to the medieval Catholic calendar of saints used in the Diocese of Turku, and it survived the Reformation in altered form even as Finland turned Lutheran. Read down a modern Finnish almanac and you can see the country’s entire history compressed into 365 days: pre-Christian Finnish names like Väinö sit beside Catholic saints’ names, Swedish imports, and a scattering of Russian ones — a legacy of centuries under both Swedish and Russian rule.
Finland actually runs four separate official name-day calendars in parallel: one for Finnish speakers, one for the Swedish-speaking minority, one for the Orthodox Church (still active in eastern Finland), and one for the Sámi. The Finnish- and Swedish-language calendars are maintained by the University of Helsinki’s Almanac Office and revised roughly every five years to reflect which names are actually in common use — a name has to earn its spot, and can lose it.
The Names Finns Actually Choose
For all the headline-grabbing rejections, most Finnish parents land somewhere far more familiar. Recent registry data has put Olivia and Leo at the top of Finland’s most popular baby names — names that would raise no eyebrows in Stockholm, Oslo, or London. If you want the fuller picture of traditional and currently popular Finnish first names, our guide to common Finnish names for girls and boys runs through the classics, from Aino to Onni.
What makes the current moment interesting is the gap between those two realities: a naming culture still anchored by centuries-old calendar names like Väinö and Aino, existing alongside a legal system now deliberately built to accommodate names the almanac never imagined. It’s the same tension you can hear in why Finnish sounds nothing like its Nordic neighbours in the first place — a language, and now a naming law, shaped by a very different history than Sweden, Norway, or Denmark’s.
How Finland Compares
Finland isn’t alone in regulating names — Iceland is famous for it too, though the two systems work in almost opposite directions. Iceland still requires most first names to come from an approved list rooted in its patronymic naming system, a stricter and more culturally conservative approach than Finland’s post-2019 law. We’ve covered that system in detail in our guide to Iceland’s naming law and patronymic system, and the contrast is a useful reminder that “Nordic” doesn’t mean “identical” — even something as personal as a first name is governed by five genuinely different sets of rules across the region.
Curious what your own name would sound like in Finnish, Swedish, or Norwegian? Try our Scandinavian Baby Name Finder to explore names across the whole region — Finland’s Names Board notwithstanding.
