Äynu may refer to:

• the Äynu people
• the Äynu language

• Smilax virginiana
• Smilax walteri
• Smilax watsonii
• Smilax zeylanica
• Smile (2009 film)
• Smile (2Pac song)
• Smile 90.4FM
• Smile (A Dental Drama)
• Smile Again (2006)
• Smile Again (2010)
• Smile Again (song)
• Smile Again (TV series)
• Smile Age
• S/mileage
• Smile Away
• Smile Before Death
• Smile (Boston Legal)
• Smile (Brian Wilson)
• Smile (Brian Wilson album)
• SmileCorp
• Smile (Dami Im song)
• Smile Darn Ya Smile
• Smile (data interchange format)
• Smile (Data Interchange Format)
• SMiLE.dk