William "Bill" Irvine Estabrooks (born July 26, 1947) is a Canadian retired educator and politician from Nova Scotia. A native of Sackville, New Brunswick, Estabrooks attended Mount Allison University from which he graduated in 1969. Estabrooks found employment as a teacher in the communities around Halifax, Nova Scotia, residing in the suburban community of Upper Tantallon. Estabrooks taught at various schools in Halifax including Sir John A. Macdonald High, Sackville High and Brookside Junior High. He has long been involved in local chapters of the Lions Club as well as volunteering with local hockey and football teams. He is also a recipient of the Lions International Presidents' Recognition Award and the Medal of Bravery from the Governor General.