Ronnie is a given name.
It can be a pet form of the masculine name Ronald and the feminine name Veronica.
The masculine Ronald is derived from the Old Norse Rögnvaldr, which is composed of the elements regin ("advice", "decision") and valdr ("ruler").
[1] The feminine Veronica is derived from a form of Berenice,[2] which is derived from the Greek Berenikē and Pherenīkē and means "victory bringer".
[3]