Deity

Many creatures are referred to as gods in Narnia. Nymphs are given the title most frequently, but there are others such as Dryads and Naiads, which are addressed as wood gods and river gods respectively. When the River God arrived at the summoning of Aslan, Aslan gave him a little bow of the head to show his respect and the River God gave it back with another little bow of the head.

Symbolism
Though Aslan and his father (the Emperor-beyond-the-Sea) clearly parallel the Christian concepts of Christ (as God the Son) and God the Father respectively, they are never referred to in the series as gods or God, and are not worshipped in a religious sense, using royal rather than divine imagery to describe their role in Narnia and the worlds beyond.