The term "half dollar" refers to a half-unit of several currencies that are named "dollar". One dollar ($1) is normally divided into subsidiary currency of 100 cents, so a half dollar is equal to 50 cents. These half dollars (aka 50 cent pieces) are denominated as either Coins or as banknotes. Although more than a dozen countries have their own unique dollar currency, not all of them use a 50 cent piece or half dollar. This article only includes half dollars and 50 cent pieces that were intended for circulation, those that add up to units of dollars, and those in the form of a coin.
Note: The blue linked years included in the tables link to articles about the coins.
^Some countries have had many varieties and forms of half dollars/50 cent pieces. The dates used in this table reflect when the current form (design/metal base) was first issued.
^Half dollars from this country no longer circulate as they are minted in small amounts for collectors who purchase them at a premium
^"New coins of the Solomon Islands". mas.gov.sg. Archived from the original on February 24, 2015. Retrieved January 30, 2015.
^"Kennedy Half Dollar". www.virmu.com. Retrieved January 31, 2015.
^"Calling in of the One Dollar Note and the Fifty Cent Circulation Coin" (PDF). Laws of Bermuda. Government of Bermuda. 30 March 1990. GN 200/1990. Archived from the original (PDF) on 18 January 2015. Retrieved 9 August 2012.
^"Public Notice: Old Cook Islands Coins No Longer Legal Tender as of 1 May 2016 - Cook Islands - Ministry of Finance and Economic Management". cookislands.gov.ck.
