However, you could consider these options:
Irish names with similar meanings:
* Lúgh: A Celtic god of light, skill, and craftsmanship. The name is pronounced "loo" and has a similar sound to "Louis".
* Lú: A shorter form of Lúgh, meaning "bright one" or "renowned".
* Liam: The Irish form of the name William, which shares a similar meaning of "willful protector".
Irish names with similar sounds:
* Lasair: Meaning "flame" or "blaze," it has a similar sound to the "Louis" ending.
* Lios: Meaning "fort" or "enclosure," it has a similar sound to the beginning of "Louis".
Ultimately, the best Irish name for "Louis" will depend on your personal preferences and the meaning you want to convey.