They are names of local saints, but normally they are only used in the parishes where there's a chapel dedicated to that saint, ie. you'll find men called Tugdual mainly in parishes where there are chapels dedicated to Saint Tugdual.
so in my area: Tugdual, Méven, Ouen, Gildas, Guénolé, Goulven, Armel, Maudé, Guénaël, Ildut...
(in Breton: Tudal, Mevenn, Aoden, Gweltaz, Gwenole, Goulven, Armael, Maodez, Gwenael, Ildud)

but there are loads throughout Brittany... many aren't even recognized by the Catholic church. As in Ireland, there are saints who were pagan gods or heroes, who have been christianised by adding "saint-" before them, or saints like "zant Diboen" (saint Withoutpain, whose fountain eases pains) or "Zant Minerh" (from mil nerzh, 1000 strengths)...

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Is fearr Gaeilg na Gaeltaċta ná Gaeilg ar biṫ eile
Agus is í Gaeilg Ġaoṫ Doḃair is binne

Of course, nobody likes to have their name pronounced incorrectly, but it's not Irish names that are strange; it's English names that are odd! In reality, England is full of Irish people and so most Irish names should not encounter too much difficulty, particularly if a famous person has the name. Siobhán was mainstreamed in England when Bananarama became famous - I'm showing my age now!

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That's exactly what I did! And of course he's a bit dark which fits the Ciar bit of the name.

You know, no matter what your name is or how it's spelled, there's a chance someone will mispronounce it. I got called "Andrea" all the time when I was growing up, because my given name has never been common in the States (though you'd think they'd at least remember Audrey Hepburn!). I had a friend in college who insisted on pronouncing it with the last syllable rhyming with "bay"...no matter how many times I corrected him, he never got it right!

Even the simplest of names can be mangled. When my daughter decided to start using "Anna" in seventh grade, she thought her days of having to correct people on the pronunciation of her name were over. Nope...about half the time, people pronounce it AH-nuh (I'm guessing because there are so many Latinos in California, and the Spanish name "Ana" is pronounced that way).

Redwolf (aka Audrey, aka any other two-syllable name that begins with "A"...in my youth, I learned to answer to all of them!)

For my first son, I informed my belle-mère (mother-in-law) that the name would be Llewellyn (pronounced the way it should be) but at the end of a week I relented and told her it was only joking. She still remembers how she felt and reminds me of it now and again. The second son is called Nicholas which (in French) got transformed into Nishola.