Peaceful one, harmonious, or first-born
A Japanese name with multiple meanings depending on the kanji used. Most commonly, it combines 'kazu' (harmony or peace) with 'ya' (an auxiliary particle or a word for 'to be'), though it can also signify 'one' or 'first'.
About 5 boys were named Kazuya in 2025.
Main protagonist and antagonist in the fighting game series · Tekken
Japanese singer-songwriter and member of the boy band KAT-TUN
The protagonist of the manga and anime series · Rent-A-Girlfriend
Japanese professional baseball player
US births per 5-year period, 1990–present (SSA data).