Free Silver was an important political issue in the late 19th century United States.

After the discovery of large silver reserves such as the Comstock Lode in the Western United States in the period shortly after the American Civil War, several disperate factions in American politics began to agitate for the federal government (which under the United States Constitution was responsible for coinage) to allow it to be minted freely at the rate of $1 per ounce. As the gold standard in effect at the time valued gold at the official price of $20 per ounce, the result of this policy would have been a considerable increase in the money supply and resultant inflation.

Inflation was not regarded with the near-universal disdain in which it is held today; many populist and radical organizations actually favored a very inflationary monetary policy on the grounds that it enabled creditors (often farmers, laborers, and industrial workers) to pay their debts off with cheaper, more readily-available dollars; those who suffered under this policy were the wealthy creditors such as banks, leaseholders, and landlords, who under this theory could well afford any loss this caused them. Other supporters obviously included silver miners and those who supplied them, territorial and state governments in silver-producing areas, and other interests who desired to see gold demonatarized or at least reduced in prominence, including many Southerners.

For the most part, the Republican Party steadfastly opposed "Free Silver" on the grounds that the best road to capitalistic development of the North American continent was "sound money", a policy of attempting to maintain, or even increase (deflation), the dollar's value, as this rewarded those who had accumulated wealth and provided them with a strong incentive to produce and hence accumulate even more, which they saw as the engine driving economic growth. The Populist Party had a strong Free Silver element; its subsequent combination with the Democratic Party moved the latter from the support of the gold standard which had been the hallmark of the Cleveland Administration to the Free Silver position epitomized by 1896 presidential nominee William Jennings Bryan in his "Cross of gold speech".

Largely due to the support of monined interests which gave the Republicans a huge campaign war chest that the Democrats could not match, the Democrats failed to win any presidential elections in which the Free Silver issue was paramount, and the next Democratic President to be elected, Woodrow Wilson in 1912, had a very different plan for monetary reform which resulted in the creation of the Federal Reserve Banking system in 1913, and Free Silver ceased to be a major issue, although its influence could perhaps be seen 20 years after the creation of the Federal Resever in President Franklin D. Roosevelt's devaluation of the dollar (fixing the value of gold at $35 per ounce rather than $20 per ounce) and (partial) abandonment of the gold standard and ban against private ownership of gold coins and bullion, adopted in 1933 as measures to counter the Great Depression.