| Election Name: | 2003 East Ayrshire Council election |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | 1999 East Ayrshire Council election |
| Previous Year: | 1999 |
| Next Election: | 2007 East Ayrshire Council election |
| Next Year: | 2007 |
| Seats For Election: | All 32 seats to East Ayrshire Council |
| Majority Seats: | 17 |
| Registered: | 92,144 |
| Turnout: | 51.8% |
| Image1: | Lab |
| Party1: | Scottish Labour Party |
| Seats1: | 23 |
| Seat Change1: | 6 |
| Popular Vote1: | 23,480 |
| Percentage1: | 49.2% |
| Swing1: | 3.5 |
| Party2: | Scottish National Party |
| Seats2: | 8 |
| Seat Change2: | 6 |
| Popular Vote2: | 16,827 |
| Percentage2: | 35.3% |
| Swing2: | 5.5 |
| Image3: | Con |
| Party3: | Scottish Conservative and Unionist Party |
| Seats3: | 1 |
| Popular Vote3: | 5,958 |
| Percentage3: | 12.5% |
| Swing3: | 3.2 |
| Council Leader | |
| Before Party: | Scottish Labour Party |
| Posttitle: | Council Leader after election |
| After Party: | Scottish Labour Party |
Elections to East Ayrshire Council were held on 1 May 2003, the same day as the 31 other local government elections in Scotland and elections to the Scottish Parliament. This was the third election since the council's creation in 1995 and the last election to use first-past-the-post voting.
Labour maintained control of the council after increasing their vote share to 49.2%. The party won a majority of the seats and increased their representation on the council. The Scottish National Party (SNP) remained as the largest opposition party on the council despite a net loss of six seats and the Conservatives held their only seat on the council.
Following the introduction of the Local Governance (Scotland) Act 2004, local elections in Scotland would use the single transferable vote electoral system which meant this was the last election in which the 32 single-member wards created by the Third Statutory Reviews of Electoral Arrangements would be contested.