Gaitzka is not a popular first name. It is more often used as a boy (male) name.
First names and their meaning - Page 10608
Gaiwin
Origin: Breton. 
Gaiwin is not a popular first name. It is more often used as a boy (male) name. 
Gaizkane
Origin: Basque. 
Gaizkane is not a popular first name. It is more often used as a girl (female) name. 
Gaizko
Origin: Basque. 
Gaizko is not a popular first name. It is more often used as a boy (male) name. 
Gajana
Gajana is not a popular first name. It is more often used as a girl (female) name.
Gaku
Gaku (written: 岳 or 学) is a masculine Japanese given name. Notable people with the name include: Gaku Hamada (濱田 […]
Gakuto
Gakuto (written: 岳人, 岳登, 岳斗 or 学人) is a masculine Japanese given name. Notable people with the name include: Gakuto […]
Galadio
Galadio is not a popular first name.
Galardo
Galardo is not a popular first name.
Galartza
Origin: Basque. 
Galartza is not a popular first name. It is more often used as a girl (female) name.