| Winners: | Arsenal U18s |
| Prevseason: | 2008–09 |
| Nextseason: | 2010–11 |
The 2009–10 Premier Academy League Under–18 season is the thirteenth edition since the establishment of The Premier Academy League, and the sixth under the current make-up.
All teams played the other teams in their group twice and play 10 inter-group fixtures, producing 28 games a season. Eight of the inter-group games were played against teams in their 'paired group' (i.e. A–B and C–D are the paired groups), whilst the remaining two games comprise one game against a team in each of the two remaining groups. Winners of each group qualify for play-offs.
Arsenal U18s defeated Nottingham Forest U18s 5–3 in the play-off final at the Emirates Stadium and won the title for the second season in a row.
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| Arsenal U18s (Q) (C) | |||||||||||||||
| Crystal Palace U18s | |||||||||||||||
| Chelsea U18s | |||||||||||||||
| Norwich City U18s | |||||||||||||||
| West Ham United U18s | |||||||||||||||
| Fulham U18s | |||||||||||||||
| Southampton U18s | |||||||||||||||
| Charlton Athletic U18s | |||||||||||||||
| Ipswich Town U18s | |||||||||||||||
| Portsmouth U18s |
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| Leicester City U18s (Q) | |||||||||||||||
| Tottenham Hotspur U18s | |||||||||||||||
| Aston Villa U18s | |||||||||||||||
| Reading U18s | |||||||||||||||
| Birmingham City U18s | |||||||||||||||
| Watford U18s | |||||||||||||||
| Cardiff City U18s | |||||||||||||||
| Bristol City U18s | |||||||||||||||
| Coventry City U18s | |||||||||||||||
| Milton Keynes Dons U18s |
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| Manchester United U18s (Q) | |||||||||||||||
| Everton U18s | |||||||||||||||
| West Bromwich Albion U18s | |||||||||||||||
| Liverpool U18s | |||||||||||||||
| Wolverhampton Wanderers U18s | |||||||||||||||
| Manchester City U18s | |||||||||||||||
| Blackburn Rovers U18s | |||||||||||||||
| Stoke City U18s | |||||||||||||||
| Crewe Alexandra U18s | |||||||||||||||
| Bolton Wanderers U18s |
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| Nottingham Forest U18s (Q) | |||||||||||||||
| Sunderland U18s | |||||||||||||||
| Newcastle United U18s | |||||||||||||||
| Middlesbrough U18s | |||||||||||||||
| Leeds United U18s | |||||||||||||||
| Barnsley U18s | |||||||||||||||
| Derby County U18s | |||||||||||||||
| Sheffield United U18s | |||||||||||||||
| Huddersfield Town U18s | |||||||||||||||
| Sheffield Wednesday U18s |
Rules for classification: 1st points; 2nd goal difference; 3rd goals scored
Pos = Position; Pld = Matches played; W = Matches won; D = Matches drawn; L = Matches lost; GD = Goal difference; Pts = Points
Q = Qualified for playoffs; C = Champions
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| Group B | width=25% | Group C | width=25% | Group D |
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