Yamato is usually written as "大和", but these two characters can also be read as "Daiwa" or "Taiwa". So "Yamato" is often used to erroneously refer to following things:
Daiwa, Hiroshima
Daiwa, Shimane
Taiwa, Miyagi
Daiwa Bank (infamous by its bond scandal)
Other places named Yamato are: (link as completed)