Guiler is not a popular first name.
First names and their meaning - Page 9263
Guillard
Guillard is not a popular first name.
Gulian
Gulian is not a popular first name. It is more often used as a boy (male) name.
Gulzaar
Origin: African. 
Gulzaar is not a popular first name. It is more often used as a girl (female) name. 
Guse
Guse is not a popular first name.
Guzi
Guzi is not a popular first name.
Gwendi
Meaning: Fair, Blessed. 
Gwendi is not a popular first name. It is more often used as a girl (female) name. 
Habakuk
Origin: Hebrew. 
Meaning: Embrace. 
Habakuk is not a popular first name. It is more often used as a boy (male) name. 
Habash
Habash is not a popular first name.
Habibollah
Habibollah is not a popular first name. It is more often used as a boy (male) name.