1/5

1/5 may refer to:

• January 5, the date
• 1 May, the date
• Quintile, a 5-quantile in statistics
• One and five, 1 shilling and 5 pence in pre-decimal British Coinage
• 1st Battalion 5th Marines
• One to five betting odds

See also

• 5
• Quintile (disambiguation)
• Fifth (disambiguation)