Sican may refer to:

• The Sican culture in what is now Peru
• Sican language
• The Sicani, a people of ancient Sicily

• Affirmative vs. negative propositions
• Affirmed
• Affirming a disjunct
• Affirming catholicism
• Affirming Catholicism
• Affirming the antecedent
• Affirming the consequent
• Affix
• Affixation
• Affixes
• Affix grammar over a finite lattice
• Affixion
• Affleck
• Affleck, Aberdeenshire
• Afflecks
• Afflicted
• Affliction
• Affliction (1997 film)
• Affliction (1997 movie)
• Affliction (Star Trek: Enterprise)
• Affligem
• Affliliate marketing
• Affluence (KCR)
• Affluence (KCRC)
• Affluent