Temples of which Yakushi Nyorai is the principal image commonly have names such as 'Yakushi-ji Temple,' 'Yakuo-ji Temple' and 'Io-ji Temple,' or names that include the word 'To' (east) such as 'Toko-ji Temple' and 'Tomyo-ji Temple.'
薬師如来を本尊とする寺院の寺号には、「薬師寺」「薬王寺」「医王寺」などのほか、「東光寺」「東明寺」のように「東」の字が付くことが多い。