No, they're pretty wide, because I can wear them! (At least the telma sandals and mes boots, which are what I have.) However they do do a range of shapes, so you could try some of the narrower-looking ones if that's what you need.
I tried a pair of Yuna on yesterday and really wasn't impressed with the quality of them. I was gutted because I have Fly London boots and LOVE them, but the shoes felt really plasticy. I thought they were quite narrow fitting, but it could have just been the style of them, they didn't have much support along the edge.
I bought some Red or Dead boots and some Schuh wedges instead, to stop myself feeling so distraught