A federal election for the sixth Reichstag of the German Empire was held on 28 October 1884. It was a regularly scheduled election under the Reichstag's three-year terms of office.

The campaign centered on Germany's nascent colonial policy, which Chancellor Otto von Bismarck reluctantly backed in the hope that it would help his supporters in the conservative parties and among the National Liberals in the 1884 election. They remained well short of a majority, however, and Bismarck had to govern through temporary blocs that he pieced together.

The election campaign was dominated by Germany's emerging colonial policy, which had the cautious support of Chancellor Otto von Bismarck and was endorsed by the conservative parties (German Conservative Party and German Reich Party) and the National Liberal Party. In September 1884, Bismarck described ‘"the whole colonial business" to his vice-chancellor, the conservative Karl Heinrich von Boetticher, as "a swindle, but we need it for the elections". In a letter to the socialist theorist Eduard Bernstein, Karl Marx's collaborator Friedrich Engels commented that Bismarck had "pulled off a brilliant election coup with the colonial hoax. The philistines are falling for it mercilessly and en masse".

The election was held under general, equal, direct and secret suffrage. All German males over the age of 25 years were able to vote except for active members of the military and recipients of poor relief. The restrictions on the military were meant to keep it from becoming politicized, while men on relief were considered to be open to political manipulation. The constitutional guarantee of a secret vote was not safeguarded at the time, since ballot boxes and polling booths were not introduced until 1903.

If no candidate in a district won an absolute majority of the votes, a runoff election was held between the first and second place finishers. It was possible for a replacement candidate to be introduced in a runoff.

Engles' evaluation, however, proved to be a miscalculation. The Conservative Party improved its totals by 82,000 votes and 28 seats, but its share of the vote dropped slightly, and it fell from second to fourth place in the Reichstag. The German Reich Party's results were essentially flat, and the National Liberals were able to pick up only five additional seats. The three parties together had 156 seats (39% of the total), which meant that the pro-government majority that Bismarck had hoped for did not materialise. The Chancellor had to continue to govern with makeshift majorities.

The German Progress Party and the Liberal Union had merged to form the German Free-minded Party in March 1884. Together with the German People's Party they won only 73 seats; in the previous Reichstag election, the left-liberal camp had had 115 members of parliament. The loss was also due to their sceptical attitude towards Germany's colonial policy.^{[citation needed]}

Despite the continuing limitations on the Social Democrats' activities under the Anti-Socialist Law of 1878, the party was able to increase its number of seats from 12 to 24. The Centre Party, which lost one seat, remained the strongest party.