The 2003 Liga Perdana 1 season is the sixth and final season of Liga Perdana 1. A total of 13 teams participated in the season out of 14 as NS Chempaka FC withdrew from the league.

The Liga Perdana 1 was introduced in 1998. It replaced the Liga Perdana (1994–97) as the top-tier football league in Malaysia.

The season kicked off on 9 February 2003. Perak again dominated the season and ended up winning the title. Perlis's Phillimon Chepita was the season's top goalscorer with 23 goals.

This season also the last season before the league was succeeded by the formation of Liga Super from 2004 season onwards while Liga Premier was formed to become the new second-tier league in Malaysian football league system. The teams from 2003 season undergoes a qualifying stage to be promoted into inaugural 2004 Malaysia Super League.

A total of 13 teams will participate in the 2003 Liga Perdana 1 season. NS Chempaka FC pulled out of the league.

Note:

A total of 8 teams will participate in the 2004 Malaysia Super League season playoffs.

Source: FIFA: Liga Perdana 1 Scorers