Eggenburg is a town in the district of Horn in Lower Austria, Austria.

Historical population

Year	Pop.	±%
1869	2,431	—
1880	2,729	+12.3%
1890	3,222	+18.1%
1900	4,106	+27.4%
1910	4,822	+17.4%
1923	4,257	−11.7%
1934	4,154	−2.4%
1939	4,930	+18.7%
1951	4,456	−9.6%
1961	4,016	−9.9%
1971	3,730	−7.1%
1981	3,680	−1.3%
1991	3,625	−1.5%
2001	3,645	+0.6%
2011	3,602	−1.2%

• Johann Zelebor (1819–1869), naturalist, illustrator, and zoologist
• Maria Teschler-Nicola (born 1950), human biologist, anthropologist and ethnologist
• Burkhard Stangl (born 1960), a composer and musician, mainly plays guitar and electronics,
• Karl-Heinz Lehner (born ca. 1975), an Austrian operatic and concert bass-baritone.
• Tobias Schopf (born 1985), an Austrian handball player who has played 18 games for Austria
• Dominik Hofbauer (born 1990), an Austrian footballer who has played over 210 games