Treasury Note may refer to any of the following obligations of the United States or United Kingdom.

Most commonly it refers to Treasury Note, debt obligations currently issued by the Treasury which mature in 1 to 10 years and pay coupons every six months.

It also refers to the following instruments which are no longer issued:

• Treasury Note (19th century), short term debt obligations issued in the 19th Century which were neither legal tender nor representative money but sometimes functioned as paper money
• Treasury (Coin) Note
  Treasury (Coin) Note
  Fractional currency notes were issued by the United States Federal Government during and after the U.S. Civil War due to the hoarding and shortage of coins in gold, silver and copper in denominations of 3, 5, 10, 15, 25 and 50 cents. These notes were in use until 1876 and were redeemable by the...
  
  , paper money issued in 1890 and 1891 under authority of the Sherman Silver Purchase Act redeemable in silver or gold
• "HM Treasury
  HM Treasury
  HM Treasury, in full Her Majesty's Treasury, informally The Treasury, is the United Kingdom government department responsible for developing and executing the British government's public finance policy and economic policy...
  
  ", banknotes issued in the past by the British Treasury
• United States Note
  United States Note
  A United States Note, also known as a Legal Tender Note, is a type of paper money that was issued from 1862 to 1971 in the U.S. Having been current for over 100 years, they were issued for longer than any other form of U.S. paper money. They were known popularly as "greenbacks" in their heyday, a...
  
  , non-interest paying legal tender paper money issued without specific specie-backing
• Interest Bearing Note
  Interest Bearing Note
  Interest Bearing Note refers to a grouping of Civil War era paper money-related emissions of the Treasury. The grouping includes the one and two year notes authorized by the Act of March 3, 1863, which bore interest at 5 percent, were a legal tender at face value, and were issued in denominations...
  
  , a grouping of Civil War-era interest paying short term debt obligations
• Compound Interest Treasury Note
  Compound Interest Treasury Note
  Compound Interest Treasury Notes were emissions of the United States Treasury Department authorized in 1863 and 1864 with aspects of both paper money and debt. They were issued in denominations of $10, $20, $50, $100, $500 and $1000. They matured for three years until they could be redeemed and...
  
  , Civil War-era short term debt obligations that had legal tender status and paid compounded interest at the end of three years