Jacksonian democracy is the political movement toward greater democracy for the common man typified by American politician Andrew Jackson and his supporters. Jackson's policies followed the era of Jeffersonian democracy which dominated the previous political era. The Democratic-Republican Party of the Jeffersonians became factionalized in the 1820s. Jackson's supporters began to form the modern Democratic Party; they fought the rival Adams and Anti-Jacksonian factions, which soon emerged as the Whigs.

More broadly, the term refers to the period of the Second Party System (mid-1830s–1854) when the democratic attitude was the spirit of that era. It can be contrasted with the characteristics of Jeffersonian democracy. Jackson's equal political policy became known as "Jacksonian Democracy", subsequent to ending what he termed a "monopoly" of government by elites. Jeffersonians opposed inherited elites but favored educated men while the Jacksonians gave little weight to education. The Whigs were the inheritors of Jeffersonian Democracy in terms of promoting schools and colleges. During the Jacksonian era, the suffrage was extended to (nearly) all white male adult citizens.