Parliamentary elections were held in Hungary on 10 May 1998, with a second round of voting in 175 of the 176 single member constituencies on 24 May.
Although the Hungarian Socialist Party received the most votes, the then-liberal conservative Fidesz won the most seats. The successful breakthrough into parliament by the extreme right-wing Hungarian Justice and Life Party was also a major shock. After the election, Fidesz formed a centre-right coalition government with the Independent Smallholders Party and Hungarian Democratic Forum.
This was the last election since 1990 that all of the mandate gained parties ran separetaly and not as alliance in electoral lists.
The unicameral National Assembly (Országgyà ±lés), the highest organ of state authority, initiates and approves legislation sponsored by the prime minister. A party had to win at least 5% of the national vote (based on the total of regional list votes) to form a parliamentary faction. The National Assembly had 386 members, elected for a four-year term in a mixed system: 176 members in single-seat constituencies by a modified two-round system, 152 in multi-seat constituencies by party-list proportional representation (using territorial lists) and 58 members (using a national list) to realize semi-proportional representation.