Chia or CHIA may refer to:

Plants

• Amaranthus hypochondriacus
• Mesosphaerum suaveolens, an herb also known as pignut or chain
• Salvia lavanduloides
• Salvia columbariae, a herbaceous annual plant that is commonly called chia, chia sage, golden chia, or desage
• Salvia hispanica, a herbaceous annual plant commonly called chia
• Salvia longispicata
• Salvia polystachya, a herbaceous perennial plant native to Mexico, Guatemala and Panama
• Salvia tiliifolia, a herbaceous annual commonly called lindenleaf sage or Tarahumara chia

Plant products

• Chia seed, edible seeds of one of the chia plant species

Places

• Chía, Aragon, a municipality in Spain
• Chía, Cundinamarca, a town and municipality in Colombia
• Chia (Sardinia), a coastal area and village in Sardinia, Italy
• Chia, Lazio, a frazione in Soriano nel Cimino, central Italy

Personal names

• Chia (surname), a surname in various cultures
  • Xie (surname), a Chinese surname often spelled Chia in Singapore and Malaysia
  • Jia (surname), a Chinese surname often spelled Chia in Taiwan or in the early 20th century
• A Spanish variant of the name Lucia

Other uses

• Chia (cryptocurrency), a proof-of-space-and-time (Storage provided over amount of time) cryptocurrency
• Chía (goddess), a deity in Muisca mythology
• Chia Pet, American figurines
• ChIA-PET, a molecular biological technique
• "Chia", a song by Four Tet from the album Rounds
• Chia Black Dragon, a series of dark fantasy novels by Stephen Marley
• Masala chai, called chia in Nepal