White cedar may refer to several different trees:

• Bignoniaceae
  • Tabebuia heterophylla - native to Caribbean islands and also cultivated as an ornamental tree
• Cupressaceae:
  • Chamaecyparis thyoides – Atlantic white cypress
  • Cupressus lusitanica – Mexican white cedar
  • Thuja occidentalis – Eastern arborvitae
• Meliaceae:
  • Melia azedarach – Chinaberry, commonly referred to as white cedar in Australia