Astia or ASTIA may refer to:

• Astia, a genus of jumping spiders
• Astia (film), Fujichrome Astia professional color reversal films by Fujifilm
• Astia Walker, (born 1975), a Jamaican runner
• Astia, new name for the Women's Technology Cluster, a women's organization in San Francisco
• The Armed Services Technical Information Agency, former name of the Defense Technical Information Center