Finnish
Etymology
Heiko + -nen, from a variant of Heikki (diminutive of Swedish Henrik, German Heinrich).
Pronunciation
- IPA(key): /ˈhei̯konen/, [ˈhe̞i̯ko̞ne̞n]
- Rhymes: -eikonen
- Syllabification(key): Hei‧ko‧nen
- Hyphenation(key): Hei‧ko‧nen
Proper noun
Heikonen
- a Finnish surname
Declension
| Inflection of Heikonen (Kotus type 38/nainen, no gradation)
|
| nominative
|
Heikonen
|
Heikoset
|
| genitive
|
Heikosen
|
Heikosten
Heikosien
|
| partitive
|
Heikosta
|
Heikosia
|
| illative
|
Heikoseen
|
Heikosiin
|
|
|
singular
|
plural
|
| nominative
|
Heikonen
|
Heikoset
|
| accusative
|
nom.
|
Heikonen
|
Heikoset
|
| gen.
|
Heikosen
|
| genitive
|
Heikosen
|
Heikosten
Heikosien
|
| partitive
|
Heikosta
|
Heikosia
|
| inessive
|
Heikosessa
|
Heikosissa
|
| elative
|
Heikosesta
|
Heikosista
|
| illative
|
Heikoseen
|
Heikosiin
|
| adessive
|
Heikosella
|
Heikosilla
|
| ablative
|
Heikoselta
|
Heikosilta
|
| allative
|
Heikoselle
|
Heikosille
|
| essive
|
Heikosena
|
Heikosina
|
| translative
|
Heikoseksi
|
Heikosiksi
|
| abessive
|
Heikosetta
|
Heikositta
|
| instructive
|
—
|
Heikosin
|
| comitative
|
See the possessive forms below.
|
| first-person singular possessor
|
|
|
singular
|
plural
|
| nominative
|
Heikoseni
|
Heikoseni
|
| accusative
|
nom.
|
Heikoseni
|
Heikoseni
|
| gen.
|
Heikoseni
|
| genitive
|
Heikoseni
|
Heikosteni
Heikosieni
|
| partitive
|
Heikostani
|
Heikosiani
|
| inessive
|
Heikosessani
|
Heikosissani
|
| elative
|
Heikosestani
|
Heikosistani
|
| illative
|
Heikoseeni
|
Heikosiini
|
| adessive
|
Heikosellani
|
Heikosillani
|
| ablative
|
Heikoseltani
|
Heikosiltani
|
| allative
|
Heikoselleni
|
Heikosilleni
|
| essive
|
Heikosenani
|
Heikosinani
|
| translative
|
Heikosekseni
|
Heikosikseni
|
| abessive
|
Heikosettani
|
Heikosittani
|
| instructive
|
—
|
—
|
| comitative
|
— |
Heikosineni
|
| second-person singular possessor
|
|
|
singular
|
plural
|
| nominative
|
Heikosesi
|
Heikosesi
|
| accusative
|
nom.
|
Heikosesi
|
Heikosesi
|
| gen.
|
Heikosesi
|
| genitive
|
Heikosesi
|
Heikostesi
Heikosiesi
|
| partitive
|
Heikostasi
|
Heikosiasi
|
| inessive
|
Heikosessasi
|
Heikosissasi
|
| elative
|
Heikosestasi
|
Heikosistasi
|
| illative
|
Heikoseesi
|
Heikosiisi
|
| adessive
|
Heikosellasi
|
Heikosillasi
|
| ablative
|
Heikoseltasi
|
Heikosiltasi
|
| allative
|
Heikosellesi
|
Heikosillesi
|
| essive
|
Heikosenasi
|
Heikosinasi
|
| translative
|
Heikoseksesi
|
Heikosiksesi
|
| abessive
|
Heikosettasi
|
Heikosittasi
|
| instructive
|
—
|
—
|
| comitative
|
— |
Heikosinesi
|
| first-person plural possessor
|
|
|
singular
|
plural
|
| nominative
|
Heikosemme
|
Heikosemme
|
| accusative
|
nom.
|
Heikosemme
|
Heikosemme
|
| gen.
|
Heikosemme
|
| genitive
|
Heikosemme
|
Heikostemme
Heikosiemme
|
| partitive
|
Heikostamme
|
Heikosiamme
|
| inessive
|
Heikosessamme
|
Heikosissamme
|
| elative
|
Heikosestamme
|
Heikosistamme
|
| illative
|
Heikoseemme
|
Heikosiimme
|
| adessive
|
Heikosellamme
|
Heikosillamme
|
| ablative
|
Heikoseltamme
|
Heikosiltamme
|
| allative
|
Heikosellemme
|
Heikosillemme
|
| essive
|
Heikosenamme
|
Heikosinamme
|
| translative
|
Heikoseksemme
|
Heikosiksemme
|
| abessive
|
Heikosettamme
|
Heikosittamme
|
| instructive
|
—
|
—
|
| comitative
|
— |
Heikosinemme
|
| second-person plural possessor
|
|
|
singular
|
plural
|
| nominative
|
Heikosenne
|
Heikosenne
|
| accusative
|
nom.
|
Heikosenne
|
Heikosenne
|
| gen.
|
Heikosenne
|
| genitive
|
Heikosenne
|
Heikostenne
Heikosienne
|
| partitive
|
Heikostanne
|
Heikosianne
|
| inessive
|
Heikosessanne
|
Heikosissanne
|
| elative
|
Heikosestanne
|
Heikosistanne
|
| illative
|
Heikoseenne
|
Heikosiinne
|
| adessive
|
Heikosellanne
|
Heikosillanne
|
| ablative
|
Heikoseltanne
|
Heikosiltanne
|
| allative
|
Heikosellenne
|
Heikosillenne
|
| essive
|
Heikosenanne
|
Heikosinanne
|
| translative
|
Heikoseksenne
|
Heikosiksenne
|
| abessive
|
Heikosettanne
|
Heikosittanne
|
| instructive
|
—
|
—
|
| comitative
|
— |
Heikosinenne
|
| third-person possessor
|
|
|
singular
|
plural
|
| nominative
|
Heikosensa
|
Heikosensa
|
| accusative
|
nom.
|
Heikosensa
|
Heikosensa
|
| gen.
|
Heikosensa
|
| genitive
|
Heikosensa
|
Heikostensa
Heikosiensa
|
| partitive
|
Heikostaan
Heikostansa
|
Heikosiaan
Heikosiansa
|
| inessive
|
Heikosessaan
Heikosessansa
|
Heikosissaan
Heikosissansa
|
| elative
|
Heikosestaan
Heikosestansa
|
Heikosistaan
Heikosistansa
|
| illative
|
Heikoseensa
|
Heikosiinsa
|
| adessive
|
Heikosellaan
Heikosellansa
|
Heikosillaan
Heikosillansa
|
| ablative
|
Heikoseltaan
Heikoseltansa
|
Heikosiltaan
Heikosiltansa
|
| allative
|
Heikoselleen
Heikosellensa
|
Heikosilleen
Heikosillensa
|
| essive
|
Heikosenaan
Heikosenansa
|
Heikosinaan
Heikosinansa
|
| translative
|
Heikosekseen
Heikoseksensa
|
Heikosikseen
Heikosiksensa
|
| abessive
|
Heikosettaan
Heikosettansa
|
Heikosittaan
Heikosittansa
|
| instructive
|
—
|
—
|
| comitative
|
— |
Heikosineen
Heikosinensa
|
|
Derived terms
Statistics
- The surname Heikonen belongs to 170 individuals, according to August 2025 data from the Digital and Population Data Services Agency of Finland.