King's Highway 88, commonly referred to as Highway 88, was a provincially-maintained highway in the Canadian province of Ontario, located in what is now the town of Bradford West Gwillimbury, that connected former Highway 27, in the village of Bond Head, with former Highway 11 in the town of Bradford. The short 9.7-kilometre (6.0 mi) route was established in 1938, though the road it followed had existed for over a century at that time.