Well its pretty obvious for the Zoras and Kokiris...
But as for the Gorons the subject is a little bit more complex. Maybe they dont have a deity at all, think about the things that were special or important to them. Say the Goron's Ruby, they held it in the center of their "village" (cave,city,state, etc.) and apperantly each culture has its special with their spiritual stone. For the Zoras it is an engangement ring, and for the Kokiris...well it was really important to their deity so that has to count as something. Maybe they didnt worshipped it but it may be an important sign of their culture. All gorons are tatooed with the symbol of the rock.
Another possible deity is the "legendary hero" who used the hammer to defeat the mighty goron-eater monster (Volvagia). This may be well the best of the cases considering that Darunia is a descendant from him and he is the "big brother" of all gorons, as said by his son who carries your name, and a sage. Also to be named by Darunia legendary, must mean a lot since he is the leader.
The last of the possibilites is either the mountain itself, or the Great Fairy which are both very unlikely. The mountai, aside from being their home feeds them but yet this is not a reasonable enough reason to hail a mountain. And the Great Fairy, well there are mulitple of them, even if it resides at the very top of the mountain doesnt make her a queen, though Darunia makes an emphasis on her powers to help Link in his quest.