Koen uiga igoa sili: Po nei, Agavaa, Laki, Foafoa, Toaga. Aumai Koen uiga o le suafa.
Koen amataga o le igoa muamua. Short form of Koenraad. Aumai Koen amataga o le igoa muamua.
E tusitusiga po o le auala e faalauiloa le igoa muamua Koen: KOON. E faapefea e faalauiloa Koen.
Igoa tutusa mo Koen i atunuu ma gagana eseese: Connie, Conrad, Conrado, Cord, Corradino, Corrado, Curt, Dino, Kondrat, Konrád, Konrad, Kord, Kurt. Aumai Koen i isi gagana.
Surnames taatele ma igoa Koen: Odayar. Aumai Lisi o surnames ma igoa Koen.
O le tele o igoa tutusa ai ma faaiu Stiegmann: Kent, Rigoberto, Jere, Kai, Irwin. Aumai Igoa e aumai faatasi Stiegmann.