Dysart or Dysert (Irish: DÃsert, meaning "hermitage") may refer to the following locations:
In Ireland:
- Dysert O'Dea, County Clare
- Dysart, County Roscommon
- The following counties also have at least one place named Dysart or Dysert:
- County Clare
- County Cork
- County Kerry
- County Kildare
- County Kilkenny
- County Laois
- County Limerick
- County Louth
- County Roscommon
- County Waterford
- County Westmeath
In the United Kingdom (Scotland):
- Dysart, Fife
In the United States of America:
- Dysart, Iowa
- Dysart, Pennsylvania
In Australia:
- Dysart, Queensland
- Dysart, Tasmania
In Canada:
- Dysart et al, Ontario
- Dysart, Saskatchewan
Dysart can also refer to:
- Dysart Buildings, Nantwich, an 18th-century terrace in Nantwich, England
- Earl of Dysart, a Scottish peer
- Martin Dysart, a character in Equus