Yusuke Hasegawa will leave his role as head of Honda's Formula One project ahead of its new partnership with Toro Rosso in 2018.
Hasegawa took over from Yasuhisa Arai after the disastrous first year of Honda's partnership with McLaren in 2015, but failed to help improve the Japanese manufacturer's fortunes in 2016 or 2017. This season's lack of performance and reliability broke an already strained relationship as McLaren severed its deal in favour of a new tie-up with Renault for next season.
Honda will stay on the grid with Toro Rosso, who will be its sole engine supply next year.