A Blaa is a doughy, white bread roll peculiar to Waterford City, Ireland. Blaas are usually very soft and covered with layers of flour, but a crusty variety is also common.

Enjoyed mainly at breakfast time with lots of butter, blaas are also often eaten during morning break and lunch but quickly lose their freshness.

Said to have been introduced to the city at the end of the 17th century by the Huguenots, the word is thought to have been derived from the French word for white, blanc. This theory is disputed because white flour did not exist in the 17th century.