Ru-An is not a popular first name. It is more often used as a unisex (male and female) name.
First names and their meaning - Page 12064
Rubén
Ruben or Rubén is a masculine given name or surname meaning "it is a son" in Hebrew. It is celebrated […]
Ru-Bing
Ru-Bing is not a popular first name. It is more often used as a unisex (male and female) name.
Rubinstein
Rubinstein is not a popular first name.
Ruca
Origin: Sanskrit. 
Meaning: Splendor. 
Ruca is not a popular first name. It is more often used as a girl (female) name. 
Ruchma
Ruchma is not a popular first name. It is more often used as a girl (female) name.
Rucka
Rucka is not a popular first name.
Rucsanda
Rucsanda is not a popular first name. It is more often used as a girl (female) name.
Rucsandra
Rucsandra is not a popular first name. It is more often used as a girl (female) name.
Rudalt
Origin: Breton. 
Rudalt is not a popular first name. It is more often used as a boy (male) name.