The 22-year-old has made 82 appearances for the Latics since joining from Sheffield United on a free transfer in 2012.
"I'm delighted to sign my contract and cannot wait to get started next season," Brown told the club's official website.
Brown scored one goal in 29 games for Oldham during the 2013-14 campaign.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Barnet | 22 | 15 | 2 | 5 | 46 | 25 | 21 | 47 |
| 2 | York City | 22 | 13 | 6 | 3 | 44 | 20 | 24 | 45 |
| 3 | Forest Green RoversForest Green | 21 | 13 | 6 | 2 | 39 | 17 | 22 | 45 |
| 4 | Gateshead | 22 | 12 | 5 | 5 | 41 | 27 | 14 | 41 |
| 5 | Oldham AthleticOldham | 20 | 11 | 7 | 2 | 36 | 19 | 17 | 40 |
| 6 | AltrinchamAltrincham | 22 | 9 | 7 | 6 | 36 | 28 | 8 | 34 |
| 7 | Yeovil TownYeovil | 22 | 10 | 4 | 8 | 27 | 23 | 4 | 34 |
| 8 | Halifax TownHalifax | 22 | 9 | 7 | 6 | 25 | 22 | 3 | 34 |
| 9 | Rochdale | 20 | 10 | 3 | 7 | 28 | 19 | 9 | 33 |
| 10 | Solihull MoorsSolihull | 22 | 9 | 5 | 8 | 38 | 35 | 3 | 32 |
| 11 | Sutton UnitedSutton | 22 | 9 | 5 | 8 | 29 | 27 | 2 | 32 |
| 12 | Hartlepool UnitedHartlepool | 22 | 7 | 9 | 6 | 24 | 24 | 0 | 30 |
| 13 | Eastleigh | 21 | 7 | 8 | 6 | 29 | 28 | 1 | 29 |
| 14 | Dagenham & RedbridgeDag & Red | 21 | 7 | 7 | 7 | 35 | 26 | 9 | 28 |
| 15 | Southend UnitedSouthend | 22 | 6 | 9 | 7 | 24 | 24 | 0 | 27 |
| 16 | Tamworth | 20 | 7 | 5 | 8 | 23 | 34 | -11 | 26 |
| 17 | Aldershot TownAldershot | 22 | 5 | 7 | 10 | 31 | 39 | -8 | 22 |
| 18 | Fylde | 22 | 6 | 4 | 12 | 27 | 43 | -16 | 22 |
| 19 | Woking | 22 | 5 | 6 | 11 | 19 | 32 | -13 | 21 |
| 20 | WealdstoneWealdstone | 21 | 4 | 8 | 9 | 24 | 32 | -8 | 20 |
| 21 | Braintree TownBraintree | 22 | 5 | 5 | 12 | 19 | 31 | -12 | 20 |
| 22 | Maidenhead UnitedMaidenhead | 22 | 5 | 5 | 12 | 27 | 44 | -17 | 20 |
| 23 | Boston UnitedBoston | 22 | 3 | 6 | 13 | 19 | 37 | -18 | 15 |
| 24 | Ebbsfleet | 22 | 1 | 6 | 15 | 16 | 50 | -34 | 9 |
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