Robert Seiko Miyashiro MLA is a Canadian politician who was elected Member of the Legislative Assembly of Alberta for Lethbridge-West in 2024.

[2] Miyashiro was a candidate for the Alberta NDP in the 2023 Alberta provincial election in the neighbouring riding of Lethbridge-East, where he lost to incumbent cabinet minister Nathan Neudorf by 636 votes.

Prior to entering politics, Miyashiro worked in the human services sector for over 40 years, and was most recently the executive director of the Lethbridge Senior Citizens Organization.

His mother was a school teacher and his father was a sheet metal worker.

Miyashiro was born in Lethbridge and raised in nearby Taber, Alberta.