Klaas uiga igoa sili: Lē ma vāloia, Gauai, Matuia, Laki, Agavaa. Aumai Klaas uiga o le suafa.
Groff uiga faaiu sili: Agalelei, Agavaa, Po nei, Toaga, Faauo. Aumai Groff uiga o faaiu.
Klaas amataga o le igoa muamua. Dutch and Low German short form of Nicholas. Aumai Klaas amataga o le igoa muamua.
E tusitusiga po o le auala e faalauiloa le igoa muamua Klaas: KLAH:S. E faapefea e faalauiloa Klaas.
Igoa tutusa mo Klaas i atunuu ma gagana eseese: Cai, Caj, Claes, Claus, Col, Colin, Collin, Kai, Kaj, Kay, Klaes, Klaos, Klas, Klaus, Kolos, Kolya, Launo, Miklavž, Miklós, Mikołaj, Mikoláš, Miksa, Mikula, Mikuláš, Mykola, Neacel, Neculai, Nels, Nic, Niccolò, Nichol, Nicholas, Niĉjo, Nick, Nickolas, Nickolaus, Nicky, Nico, Nicol, Nicola, Nicolás, Nicolae, Nicolao, Nicolaos, Nicolas, Nicolau, Nicolaus, Nicolò, Nicu, Nicușor, Niels, Nigul, Niilo, Nik, Nika, Nikica, Niklas, Niklaus, Niko, Nikola, Nikolai, Nikolaj, Nikolajs, Nikolao, Nikolaos, Nikolas, Nikolaus, Nikolay, Nikolche, Nikoloz, Nikora, Nikša, Nikusha, Nils, Nioclás. Aumai Klaas i isi gagana.
Surnames taatele ma igoa Klaas: Makgae, Hamminga, Dijkstra. Aumai Lisi o surnames ma igoa Klaas.
O le tele o igoa tutusa ai ma faaiu Groff: Timmy, Nick, Long, Elise, Brande, Élise. Aumai Igoa e aumai faatasi Groff.
Ogatasi o Klaas ma Groff o 69%. Aumai Ogatasi o Klaas ma Groff.