The family name "Kasuya" (糟屋) is recorded as having been written using different character combinations (糟谷, 粕屋, 加須屋), but the famous combination used by Sanekatsu KASUYA was"加須屋".
姓は糟屋の他に糟谷・粕屋・加須屋とも記され、有名な名乗りとしては「加須屋真雄（かすやさねかつ）」とも。