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 | 30 | 19 | 6 | 5 | 60 | 30 | 30 | 63 |
| 2 | Forest Green RoversForest Green | 29 | 16 | 11 | 2 | 48 | 22 | 26 | 59 |
| 3 | York City | 28 | 17 | 6 | 5 | 54 | 26 | 28 | 57 |
| 4 | Oldham AthleticOldham | 28 | 14 | 9 | 5 | 46 | 30 | 16 | 51 |
| 5 | Gateshead | 28 | 14 | 7 | 7 | 51 | 36 | 15 | 49 |
| 6 | Halifax TownHalifax | 28 | 12 | 9 | 7 | 34 | 26 | 8 | 45 |
| 7 | Rochdale | 25 | 13 | 3 | 9 | 38 | 22 | 16 | 42 |
| 8 | AltrinchamAltrincham | 27 | 11 | 9 | 7 | 44 | 32 | 12 | 42 |
| 9 | Solihull MoorsSolihull | 29 | 12 | 6 | 11 | 46 | 41 | 5 | 42 |
| 10 | Sutton UnitedSutton | 28 | 11 | 8 | 9 | 39 | 36 | 3 | 41 |
| 11 | Southend UnitedSouthend | 28 | 10 | 9 | 9 | 33 | 30 | 3 | 39 |
| 12 | Hartlepool UnitedHartlepool | 29 | 9 | 12 | 8 | 34 | 35 | -1 | 39 |
| 13 | Eastleigh | 28 | 9 | 11 | 8 | 37 | 36 | 1 | 38 |
| 14 | Yeovil TownYeovil | 29 | 10 | 8 | 11 | 33 | 35 | -2 | 38 |
| 15 | Tamworth | 28 | 10 | 7 | 11 | 32 | 44 | -12 | 37 |
| 16 | Dagenham & RedbridgeDag & Red | 28 | 8 | 8 | 12 | 41 | 40 | 1 | 32 |
| 17 | Woking | 28 | 7 | 10 | 11 | 29 | 39 | -10 | 31 |
| 18 | Braintree TownBraintree | 29 | 8 | 7 | 14 | 28 | 39 | -11 | 31 |
| 19 | Aldershot TownAldershot | 28 | 6 | 12 | 10 | 42 | 48 | -6 | 30 |
| 20 | Fylde | 29 | 8 | 4 | 17 | 35 | 59 | -24 | 28 |
| 21 | WealdstoneWealdstone | 28 | 5 | 11 | 12 | 32 | 42 | -10 | 26 |
| 22 | Maidenhead UnitedMaidenhead | 28 | 7 | 5 | 16 | 35 | 57 | -22 | 26 |
| 23 | Boston UnitedBoston | 26 | 4 | 7 | 15 | 24 | 44 | -20 | 19 |
| 24 | Ebbsfleet | 30 | 1 | 9 | 20 | 21 | 67 | -46 | 12 |
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