Lifespan: Kōji 3 (1557) to 4/23 of Kanei 16 (1639)
Other Names: Okichika
Title: Governor of Chikuzen
Clan: Kawada → Echigo-Nakajō → Ōmi-Yasuda (descended from the Jō clan of the Daijō lineage of the Kanmu-Heishi)
Lord: Uesugi Kenshin → Uesugi Kagekatsu → Uesugi Sadakatsu
Father: Kawada Motochika
Adoptive Father: Nakajō Fujisuke → Yasuda Nagahide
Siblings: Kawada Nagachika, Fujō Tadachika, Katachika
Wife: Younger sister of Yasuda Arishige
Children: Yoshichika, daughter (wife of Yasuda Iechika), Iechika
Yasuda Katachika served as a bushō from the Sengoku to early Edo periods. He was a retainer of the Uesugi clan. Katachika was the head of the Ōmi-Yasuda clan who were one of the kokujin, or provincial landowners, and members of the Agakita Group of northern Echigo Province. He served as the lord of Yasuda Castle in the Shirakawa manor of the Kitakanbara District of Echigo.
The Yasuda were a gōzoku, or wealthy family, from northern Echigo descended from the Jō clan, a branch of the Daijō lineage of the Kanmu-Heishi.
In 1557, Katachika was born as the third son of Kawada Motochika.
Initially, he was adopted by Nakajō Fujisuke, but owing to conflicts with the band of retainers of the Nakajō family, returned to his original home. Later, he was adopted by Yasuda Nagahide and, during the Tenshō era, inherited the headship of the Ōmi-Yasuda clan. This was separate from the Daiei-Yasuda associated with Yasuda Yoshimoto and other retainers of the Uesugi clan.
Later, Katachika participated in the deployment to the Korean Peninsula for the Bunroku Campaign and followed the Uesugi upon their transfer to Aizu in Mutsu Province. He received a fief of 2,500 koku in Sendō.
In 1639, he died at the age of eighty-three. His lineal heir, Yasuda Yoshichika, died in 1618 so his son-in-law, Yasuda Iechika (the third son of Fukushima Hideshige), inherited the headship of the clan.