This list of streets and squares in Cardiff, Wales, includes notable outdoor thoroughfares and formal public spaces in the city.

Roads

• Cathedral Road, Pontcanna
• City Road, Plasnewydd
• Cowbridge Road East and Cowbridge Road West, the main road to the west
• Newport Road, the main road to the east

Streets

• Bute Street, Butetown (Cardiff Bay)
• Caroline Street, city centre, also known as Chip Alley or Chippy Lane.
• Lloyd George Avenue, Atlantic Wharf (Cardiff Bay)
• St. Mary Street, city centre
• The Hayes, city centre
• West Grove, Roath

• 
  Caroline Street - 'Chip Alley'/'Chippy Lane' (2010)
• 
  St Mary Street, northern end (2009)
• 
  St Mary Street, southern end (2007)
• 
  The Hayes before redevelopment (2006)
• 
  The Hayes and St Davids 2 (2010)

Squares

• Callaghan Square, city centre, previously known as Bute Square.
• Central Square, city centre, included the bus station between 1954 and 2015.
• Loudoun Square, Butetown
• Mount Stuart Square, Butetown
• Roald Dahl Plass, Cardiff Bay.

• 
  Callaghan Square looking northwest (2008)
• 
  Central Square, Cardiff railway station front (2020)
• 
  Central Square, Cardiff (2021)
• 
  Roald Dahl Plass (2009)