Alliston is a settlement in Simcoe County in the Canadian province of Ontario. It is part of the Town of New Tecumseth since the 1991 amalgamation of Alliston and nearby villages of Beeton, Tottenham, and the Township of Tecumseth. The primary downtown area is located along Highway 89, known as Victoria Street.
The town grew as a commercial centre for the area farmers and was best known as a potato-growing area. It is still a major industry in the town and is celebrated by the annual Alliston Potato Festival. Honda of Canada Manufacturing operates a large auto manufacturing facility southeast of Alliston, currently consisting of three major factories. In the 2011 census, the town of Alliston grew by 23% since 2006 to 15,379. This is over 4 times the average in the county of Simcoe.
Alliston traces its history to three brothers, William, John and Dickson Fletcher. Dissatisfied with life in England, the three left for Toronto, working farms in Toronto Gore northwest of the city. In 1821 William purchased Lot 15, Consession 3, Tecumseth Township. He married in 1828, and in 1847 went scouting locations for the construction of a mill with his son John. The chose a location at Lot 1, Consession 1, Essa Township, at the corner where four of the original townships of southern Simcoe County (Adjala, Tosorontio, Essa, and Tecumseth) meet. In early November they built a cabin on the property, and the rest of the family joined them in April the next year. A larger house, known as Fletcher House, was built in 1849, and still stands at 18 Fletcher Crescent.
In 1853 the Fletchers built a grist mill on the Boyne River, a tributary of the Nottawasaga River which runs to the east. The first child born in the new town was Margaret Grant, who was later mother to Frederick Banting. An Orange Lodge was built in 1856, and the next year the members decided to name the village as Alliston. The precise origin of the name remains in some doubt, but the most common story is that it was named for James Banting's birthplace in Yorkshire. A post office was set up the next year, with another Fletcher son, George, the first postmaster. Starting in 1862, George published "The Alliston Star" newspaper, which changed its name to "Alliston Herald" in 1871 and continues to be published today. The village was formally incorporated in 1874, with George Fletcher as the reeve.
In 1875 the town was approached by the North Simcoe Railway to run a line from Penetanguishene through Alliston to join the Toronto, Grey and Bruce Railway. This venture came to nothing, but the organization set up to investigate it later turned to the Hamilton and North-Western Railway to build a new arm from Clarkstown (now Beeton) through Alliston to Collingwood. The town raised $8000 for its portion of the railway from Clarkstown to Glencairn, about half way to Collingwood.
Alliston was upgraded from "village" to "town" in 1891. On May 8 the same year a fire started in the stables of the Queen's Hotel, and was quickly spread by high winds. Collingwood was telegraphed for assistance and sent their fire engine by train, but the downtown area was gutted long before it could arrive. When it did arrive at about 3 in the afternoon, it was sent to the southern side of town where the fire was still burning. In all, 30 acres (120,000 m2) of the town were destroyed by the fire, which received the attention of John A. Macdonald. This led to the creation of a waterworks the next year, which included twenty fire hydrants, and the addition of a hook and ladder truck in 1894.
A census in August 1902 stated that 1,475 people were living in the town. A new line of the Canadian Pacific Railway (C.P.R.) reached the town in 1905 or early 1906, with trains arriving later in 1906. The local electric power company, Alliston Electric, was merged into Ontario Hydro on May 24, 1918.
The town has two parks: Riverdale Park to the north along the Boyne River and PPG Park to the south, by the local fire department. Major residential areas are located to the north (as Previn Court Homes) and to the south, with additional residential and commercial developments made since then in the northwest (as "Alliston West"), north and southwest since the mid-1990s, with future developments expected in the future that could raise the population from 17,000 to 20,000. The urban area stretches from west to east, is nearly 3 km, and from north to south ranges from 300 m, 600 m to 1 km. Another residential area, adjacent to the Nottawasaga Inn are located 5 km east of Alliston- the first phase built is known as Green Briar; the second phase, to the west of the Inn is known as Briar Hill. The Nottawasaga River is situated east of the town; the Boyne River, which runs through Alliston, joins the Nottawasaga, just downstream from Nicolston Dam. The CPR (Toronto - Parry Sound - Sudbury) runs right up through the middle of town with a siding for Honda vehicles. Many other business thrive today in Alliston. Honda of Canada Manufacturing has two facilities. The CNR tracks through town were lifted about the mid-1990s. The right-of-way is gone - not preserved, unfortunately.
Earl Rowe Provincial Park is located three kilometers west of Alliston, in the amalgamated Township of Adjala-Tosorontio. It is one of the largest provincial parks in Southern Ontario.
- Population: 15,379 (2011 Census)
- Area: - 60 km
- Density: - 256.316667 per/sq/km
- Location: - Ontario, Canada
- Postal code: L9R xxx
- Area code: +1-705
- Elevation: about 200 m (700 ft)
- Name of inhabitants: Allistonian sing., -s pl.
The current mayor of New Tecumseth is Rick Milne who won the chair position on October 27, 2014. Milne is a former mayor of New Tecumseth, serving the community in 1984. Milne decided to re-run for the mayor position in the fall of 2014 when former mayor Mike MacEachern announced he would not be seeking re-election.
Former mayor of New Tecumseth is Mike MacEachern, who completed three terms in office. MacEachern overlooked four communities within New Tecumseth which consist of Alliston, Beeton, Tecumseth and Tottenham. In addition to being mayor, MachEachern also held a position with the County of Simcoe being a member of the County's Performance Management Commitee, a chair member with the Nottawasaga Police Board, member of the South Simcoe mayors association, and also an Executive Director of Focus Community Development Corporation.
Since the amalgamation of Alliston, Beeton and Tottenham under the Town of New Tecumseth, New Tecumseth Fire Rescue has 3 stations with a total force of 105 personnel. The Alliston Fire Station, now known as New Tecumseth Fire Station 1, was originally founded as the Alliston Fire Brigade in 1906 after many years of having a non-incorporated Fire Brigade.
Honda of Canada Manufacturing has three plants producing vehicles and parts for the Americas.The first plant creating the new model Civic, the second creating the new model CRV and the third plant working as their engine plant. Plant one and two were built in the mid to late 1980s and plant three built in 2006. The plants have a combined work force of 4,600 workers.  
Stevenson Memorial Hospital first opened in 1928, when donations from Theodore Loblaw, of the famed Loblaws grocery chain, conceived the idea of a hospital as a tribute to his grandparents, William and Elizabeth Stevenson. This fully accredited hospital serves a catchment area that includes Adjala-Tosorontio, Canadian Forces Base Borden, Essa, Innisfil and New Tecumseth.
The hospital, in partnership with Southlake Regional Health Centre in Newmarket, is in a period of growth and opportunity. Stevenson Memorial offers a wide scope of medical and surgical services. It is on the brink of further expanding its services and has re-introduced Level 1 maternity care.
- Margaret Atwood - lived on a farm near Alliston from 1973-1980.
- Sir Frederick Banting - co-inventor of insulin; co-recipient of 1923 Nobel Prize in Physiology or Medicine. The town's only high school is named in his honour, Banting Memorial High School.
- John Gould - hockey player.
- Larry Gould - hockey player.
- William Erskine Knowles - member of the Legislative Assembly of Saskatchewan, and Canadian House of Commons.
- James Lafazanos - actor.
- Bryan Lewis - Politician; Director of Officiating for National Hockey League.
- Theodore Loblaw - founder of Loblaws supermarkets.
- George McCague - member of Legislative Assembly of Ontario.
- Zelda McCague (1888-2001) - oldest living Canadian and one of oldest people in the world.
- George Wesley Norman - member of Legislative Assembly of Saskatchewan.
- Harold Timmins - politician and jurist.
- Joyce Trimmer - politician; retired to Alliston.
- Jim Wilson - member of the Legislative Assembly of Ontario.
- Angus, north
- CFB Borden, north
- Riverstone, North
- Egbert, northeast
- Cookstown, east
- Beeton, southeast
- Tottenham, south
- Hockley, southwest
- Everett, west
- Baxter, northeast
Alliston has two public elementary Schools (Ernest Cumberland and Alliston Union Public School) and two Catholic elementary schools (Holy Family and St. Paul's), and one public high school (Banting Memorial High School).
- http://www.simcoe.com/news-story/4946949-rick-milne-elected-mayor-of-new-tecumseth/. Missing or empty
- http://newtecumseth.ca/town-hall/mayor-council/about-the-mayor/. Missing or empty
- "The Star".
- "Honda in Canada".
- "Margaret Atwood Biography". Retrieved 2 March 2011.
- A brief history of Alliston, W. G. E. Cumberland, historical pamphlet published on the town's centennial in 1947.
- Local History, Louise Gallaugher, 1977.
- Stevenson Memorial Hospital, SMHOSP, 2009.
- Town of New Tecumseth
- The Alliston Herald community newspaper
- New Tecumseth Free Press Online - daily local news