kˈɪŋz hˈaɪweɪ twˈɛlv, kˈɑːmənli ɹᵻfˈɜːd tʊ æz hˈaɪweɪ twˈɛlv ænd hɪstˈɔːɹɪkli nˈoʊn æz ðə wˈɪtbi ænd stˈɜːdʒən bˈeɪ ɹˈoʊd, ɪz ɐ pɹəvˈɪnʃəli meɪntˈeɪnd hˈaɪweɪ ɪnðə kɐnˈeɪdiən pɹˈɑːvɪns ʌv ɑːntˈæɹɪˌoʊ.
King's Highway 12, commonly referred to as Highway 12 and historically known as the Whitby and Sturgeon Bay Road, is a provincially maintained highway in the Canadian province of Ontario.