There are a number of Historical Plaques around Mississauga describing the city's past..
- Barberton Historical Plaque
- Bethesda Common Historical Plaque
- Canada's First Aerodrome Historical Plaque
- Charlotte Schreiber Historical Plaque
- Credit Indian Village Historical Plaque
- Derry West Plaque
- Dixie Arena Historical Plaque
- Dixie Union Chapel Historical Plaque
- The Elliott House Historical Plaque
- Government Inn 1798-1861 Historical Plaque
- Honourable Thomas Laird Kennedy Historical Plaque
- Mabel Boyd Rink Historical Plaque
- Mazo de la Roche Historical Plaque
- Paul Henderson Rink Plaque
- Reid Mill Historical Plaque
- Reverend James Magrath at St. Peter's Historical Plaque
- Sir William Pearce Howland Historical Plaque
- Streetsville Historical Plaque