thumb|Location of Wakamatsu-ku in Kitakyūshū

is a ward of Kitakyūshū, Fukuoka, Japan. It has an area of and a population of about 88,594 (national census, 2000).

History

Wakamatsu was first established as a village in Onga District in 1889. It was upgraded to town status in 1891.

The opening of a railway (now the Chikuhō Main Line) to Nōgata on 30 August 1891 made Wakamatsu's harbour a critical transhipment point for coal from the Chikuhō coalfield, leading to the town's rapid growth. It was elevated to city status on 1 April 1914.