Canada

• Old Mill Park (Shawnigan Lake), in Shawnigan Lake, British Columbia
• Old Mill, Toronto, a neighbourhood of Toronto, Canada
  • Old Mill Toronto, an historic mill in Toronto
  • Old Mill (TTC), a subway station there

United Kingdom

• Old Mill, Cornwall, a place in Cornwall

United States

• John Wood Old Mill, Merrillville, Indiana, listed on the NRHP in Indiana
• Old Mill House, Le Claire, Iowa, listed on the NRHP in Iowa
• Old Mill Site Historic District, a historic district in Hatfield, Massachusetts
• Old Mill (West Tisbury, Massachusetts)
• Old Mill State Park WPA/Rustic Style Historic Resources, Argyle, Minnesota, listed on the NRHP in Minnesota
• Ramsey Mill and Old Mill Park, ruin of a water-powered gristmill in Hastings, Minnesota
• Old Mill at Montauk State Park, Salem, Missouri, listed on the NRHP in Missouri
• Old Mill at Tinton Falls, Tinton Falls, New Jersey, listed on the NRHP in New Jersey
• Old Mill Museum (Dundee, Michigan)
• The Old Mill (Nantucket, Massachusetts)
• The Old Mill (San Marino, California), a former grist mill in San Marino, California
• Old Mill (University of Vermont), a historic campus building in Burlington, Vermont
• Old Mill (Vermilion, Ohio), listed on the NRHP in Erie County, Ohio
• Calvert Mill/Washington Mill or The Old Mill, an historic mill located on Old Mill Road in Washington, Virginia
• Crystal Mill or The Old Mill
• Pigeon Forge Mill, commonly called the "Old Mill," NRHP listing in Pigeon Forge, Tennessee
• T. R. Pugh Memorial Park or The Old Mill, a NRHP listing in North Little Rock, Arkansas

Australia

• Old Mill, Perth

England

• Old Mill, Aldbrough, a windmill in the East Riding of Yorkshire
• Old Mill, Amberley, a windmill in West Sussex
• Old Mill, Ashington, a windmill in West Sussex
• Old Mill, Barnham, a windmill in West Sussex
• Old Mill, Barrow, a windmill in Suffolk
• Old Mill, Beckley, a windmill in East Sussex
• Old Mill, Beddingham, a windmill in East Sussex
• Old Mill, Bethersden, a windmill in Kent
• Old Mill, Bosham, a windmill in West Sussex
• Old Mill, Bramford, Coseley, a windmill in Staffordshire
• Old Mill, The Dicker, Chiddingly, a windmill in East Sussex
• Old Mill, Chidham, a windmill in West Sussex
• Old Mill, Compton, a windmill in West Sussex
• Old Mill, Cross in Hand, a windmill in East Sussex
• Old Mill, Eastbourne, a windmill in East Sussex
• Old Mill, East Ruston, a windmill in Norfolk
• Old Mill, Fairlight, a windmill in East Sussex
• Old Mill, Falmer, a windmill in East Sussex
• Old Mill, Findon, a windmill in West Sussex
• Old Mill, Forest Row, a windmill in East Sussex
• Old Mill, Guestling, a windmill in East Sussex
• Old Mill, Hawkinge, a windmill in Kent
• Old Mill, Hellingly, a windmill in East Sussex
• Old Mill, Henfield, a windmill in West Sussex
• Old Mill, Keyingham, a windmill in the East Riding of Yorkshire
• Old Mill, Little Horsted, a windmill in East Sussex
• Old Mill, Lydd, a windmill in Kent
• Old Mill, Margate, Kent.
• Old Mill, Newick, a windmill in East Sussex
• Old Mill, New Romney, a windmill in Kent
• Old Mill, Northbourne, a windmill in Kent
• Old Mill, Northchapel, a windmill in West Sussex
• Old Mill, Northiam, a windmill in East Sussex
• Old Mill, Oving, a windmill in West Sussex
• Old Mill, Petworth, a windmill in West Sussex
• Old Mill, Playden, a windmill in East Sussex
• Old Mill, Plumstead, a windmill in Norfolk
• Old Mill, Preston next Wingham, a windmill in Kent
• Old Mill, Prittlewell, a windmill in Essex
• Old Mill, Ripe, a windmill in East Sussex
• Old Mill, Rodmell, a windmill in East Sussex
• Old Mill, Rusper, a windmill in West Sussex
• Old Mill, Rye, a windmill in East Sussex
• Old Mill, Seaton Ross, a windmill in the East Riding of Yorkshire
• Old Mill, Shoreham, a windmill in West Sussex
• Old Mill, Southam, a windmill in Warwickshire
• Old Mill, Swingfield, a windmill in Kent
• Old Mill, Takeley, a windmill in Essex
• Old Mill, Thaxted, a windmill in Essex
• Old Mill, Uckfield, a windmill in East Sussex
• Old Mill, West Kingsdown, Kent
• Old Mill, Whatlington, a windmill in East Sussex
• Old Mill, Wicklewood, a windmill in Norfolk
• Old Mill, Wighton, a windmill in Norfolk
• Old Mill, Willesborough, a windmill in Kent
• Old Mill, Willingdon, a windmill in East Sussex
• Old Mill, Wittersham, a windmill in Kent
• Old Mill, Woodham Mortimer, a windmill in Essex
• Old Mill, Worlingworth, a windmill in Suffolk

• Glover's Old Mill, Blean, a windmill in Kent
• Lashmar's Old Mill, Brighton, a windmill in East Sussex
• Tivoli Old Mill, St Leonard's, a windmill in East Sussex
• Dilnot's Old Mill, Waltham, a windmill in Kent
• Old Mill Green Mill, Wetheringsett, a windmill in Suffolk
• Ruiton Old Mill, Sedgeley, a windmill in Staffordshire

United States

• Old Mill, Addison, a windmill in Illinois
• Old Mill, East Orleans, a windmill in Massachusetts
• Old Mill, Nantucket, a windmill in Massachusetts
• Old Mill, Sandwich, a windmill in Massachusetts
• Old Mill, Tinley Park, a windmill in Illinois
  • Franzen's Old Mill, Golden, a windmill in Illinois
  • Old Emmon's Estate Mill, Falmouth, a windmill in Massachusetts
  • Old Higgins Farm Mill, Brewster, a windmill in Massachusetts
  • Old Mill Farm Mill, Winnetka, a windmill in Illinois

England

• Old Mill, Bexley, on the River Cray, Kent
• Old Mill, Borough Green, on the River Bourne, Kent
• Old Mill, Eynsford, on the River Darent, Kent
• Old Mill, Hollingbourne, also known as Old Mill, Leeds, on the River Len, Kent
• Old Mill, Loose, on the Loose Stream, Kent
• Old Mill, South Darenth, on the River Darent, Kent

United States

• Old Mill (West Tisbury, Massachusetts)
• Old Mill (Vermilion, Ohio), listed on the NRHP in Erie County, Ohio
• Old Mill, Crystal, Colorado, listed on the NRHP in Gunnison County, Colorado