Tanjiro Kamado (竈門かまど 炭たん治じ郎ろう Kamado Tanjirō?) is the main protagonist of Demon Slayer: Kimetsu no Yaiba. He is a Demon Slayer in the Demon Slayer Corps, who joined to find a remedy to turn his sister, Nezuko Kamado, back into a human.

Tanjiro is a muscular young man with rather tanned skin and an athletic physique. He has ruffled, black hair with burgundy tips, combed back to expose his forehead, and wide, dark red eyes with white pupils that appear lighter around the lower section of his irises. He also has a scar on the top left of his forehead, which he received when he protected his younger brother from a falling brazier. The scar originally looked somewhat like a graze until his fight with the Hand Demon during the Final Selection, after which it develops into his Demon Slayer Mark. It is noted that his hands are visibly rougher for someone his age, as a result of his rigorous training under Sakonji Urokodaki. Tanjiro looks remarkably similar in appearance to his ancestor Sumiyoshi, possessing the same facial structure, eyes, and hairstyle as him, although Sumiyoshi’s hair was longer, about shoulder-length and would be tied in a ponytail behind his head.

Tanjiro first appears wearing a checkered, black-and-sea-foam-green haori over a white robe and black pants. He occasionally sports a turquoise scarf and is seen with circular, white bands looped around his calves. He also wears a distinct pair of hanafuda earrings, with the image of a white-and-red flower. His hair is also kept tied back in small ponytail or bun; as he trains with Sabito and Makomo, his hair grows to his shoulders.

Before he became a Demon Slayer, his family was slaughtered by the Demon King, Muzan Kibutsuji, while his younger sister, Nezuko, was turned into a Demon.