The Ganesha Purana, important text of the Ganapatya, gives a list of the twelve main names of the elephant-headed-god. These names must be used before any ritual. They are the following :

Sumukha : "The very graceful Lord"
Ekadanta : "The Lord who has only one tusk"
Kapila : "The Lord of a tawny color"
Gajakarna : "The Lord with elephant ears"
Lambodara : "The Lord with a prominent belly"
Vikata : "The Misshapen"
Vighnansaka : "The Lord destroyer of obstacles"
Gandhipa : "The Lord Protector of the Gana" ...more

As per Ganesh Purnaa There are one thousand Names A few of Them with meanings as Follows :
Gacchhatae who is the goal of the devas
Gachha Guravae who is the Guru of the celestials
Gachha Parya who moves among the celestials
Gachhabhartrae who is the upholder of the celestials
Gachhadtrae who is the supporter of the celestials
GachhAgarvagnae who is the fire that consumes the ego of the celestials
Gachhamaryda Pratiplakya who maintains celestial order
Gachhapatayae who is lord of the celestials
Gachhaprabhavae who is the splendor of the celestials ...more

Jhee nahin pata