There are many towns in Ireland beginning with the letter T, but there is no city in Ireland that begins with the letter T. The term "city" is used very loosely in some countries and is often used for very small urban areas. That is not the case in Ireland. So while by the way some people think of a city, there could be lots of them, but they are not cities. So there are many large towns in Ireland, some beginning with T, but none of those would be regarded as being a city.
Toronto
Truman starts with T.
· Tacoma is a city in Washington
toronto
if you are referring to a type of dog that starts with T, then a Terrier.
Tampa, Florida
· Tipton is a city in Iowa
Thebes, Egypt
Probably town
Truro
· Texarkana, Texas
· Thun, Switzerland