Milliken Mills High School

The York Region District School Board (YRDSB), briefly the English-language Public District School Board No. 16 in 1999, is the English-language public school board for the Regional Municipality of York in Ontario, Canada. The York Region District School Board is the province's third-largest school board after Toronto's TDSB and Peel's PDSB, with an enrolment of over 122,000 students. It is in the fastest-growing census division in Ontario and the third-fastest growing in Canada.

The public francophone (Conseil scolaire Viamonde), English Catholic (York Catholic District School Board), and French Catholic (Conseil scolaire catholique MonAvenir) communities of York Region also have their own publicly funded school boards and schools that operate in the same area.