I'm pretty sure that Katie is Irish and not English.

I think it is English but Katie is more popular in Ireland than England.

I have always loved the name Katie. This name was used a lot in the 1890's and in 1980 and 1990 the popularity of the name boomed again.

Katie is ridiculously common. As a Katherine who prefers to be called Katie, the sheer abundance of Katies in the world means I have to suffer through mix-ups and usage of my last name, which is also one of the top 5 most common last names in my home country.

I do like the name's versatility and meaning however, as I can call myself Kate or Katherine as I grow older.