| Millar Western Fox CreekSawmillCanfor (f.d. Millar Western) | Canada | - | Operating | No data yet |
| Millar Western WhitecourtSawmillCanfor (f.d. Millar Western) | Canada | - | Operating | No data yet |
| Millari NZ (ex-Juken New Zealand) GisborneSawmillMillari NZ | New Zealand | - | Closed | 60 000 m3/y sawn timber |
| Misawa Homes of Finland MikkeliSawmillMisawa Homes of Finland Oy | Finland | Softwood | Operating | No data yet |
| Mission Forest Products CorinthSawmillMission Forest Products | United States | Softwood | Operating | 424 448 m3/y sawn timber |
| MM-Efimovsky sawmill (Efimovsky)SawmillOOO MM-Efimovsky | Russia | Softwood | Operating | 380 000 m3/y sawn timber |
| Moelven Årjäng SågSawmillMoelven Årjäng Såg AB | Sweden | Softwood | Operating | No data yet |
| Moelven Dalaträ (Mockfjärd)SawmillMoelven Dalaträ AB | Sweden | Softwood | Operating | No data yet |
| Moelven EdanesågenSawmillMoelven Edanesågen AB | Sweden | Softwood | Operating | No data yet |
| Moelven LøtenSawmillMoelven Løten AS | Norway | Softwood | Operating | 50 000 m3/y sawn timber |
| Moelven MjøsbruketSawmillMoelven Mjøsbruket AS | Norway | Softwood | Operating | No data yet |
| Moelven NotnäsSawmillMoelven Notnäs Ransby AB | Sweden | Softwood | Operating | No data yet |
| Moelven NumedalSawmillMoelven Numedal AS | Norway | Softwood | Operating | No data yet |
| Moelven ØsterdalsbruketSawmillMoelven Østerdalsbruket AS | Norway | Softwood | Operating | No data yet |
| Moelven RansbySawmillMoelven Notnäs Ransby AB | Sweden | - | Closed 2025 | 80 000 m3/y sawn timber |
| Moelven Soknabruket (Sokna)SawmillMoelven Soknabruket AS | Norway | Softwood | Operating | No data yet |
| Moelven TelemarksbruketSawmillFramTre Industri avd. Bø (f.d. Telemarksbruket) | Norway | Softwood | Operating | 85 000 m3/y sawn timber |
| Moelven TrysilSawmillMoelven Trysil AS | Norway | Softwood | Operating | No data yet |
| Moelven ValåsenSawmillMoelven Valåsen AB | Sweden | Softwood | Operating | 450 000 m3/y sawn timber |
| Moelven Våler (Braskereidfoss)SawmillMoelven Timber AS | Norway | Softwood | Operating | 195 000 m3/y sawn timber |
| Mokkan no Mori Yotsukura-fabriken (木環の杜 四倉工場)SawmillKowanomori Co., Ltd. (株式会社木環の杜) | Japan | Softwood | Operating | 55 000 m3/y sawn timberestimated from 110 000 m3/y log intake |
| Monnet-Sève Saint-VulbasSawmillMonnet Sève SA (MS Bois) | France | Softwood | Operating | 570 000 m3/y |
| Montrose Forest ProductsSawmillMontrose Forest Products | United States | Softwood | Operating | 144 312 m3/y sawn timber |
| Morgan LumberSawmillMorgan Lumber Company | United States | Softwood | Operating | No data yet |
| Mosser Holzindustrie WolfpassingSawmillMosser Holzindustrie | Austria | - | Operating | 165 000 m3/y sawn timberestimated from 330 000 m3/y log intake |
| Mt. Adams Forest Products BingenSawmillMt. Adams Forest Products (WKO) | United States | Softwood | Operating | No data yet |
| MTO George SawmillSawmillMTO Forestry | South Africa | - | Operating | 52 500 m3/y sawn timberestimated from 105 000 m3/y log intake |
| Multian SahaSawmillMultian Saha Oy | Finland | Softwood | Operating | 50 000 m3/y sawn timber |
| Munro SawmillsSawmillMunro Sawmills Ltd | United Kingdom | Softwood | Operating | No data yet |
| Murray Timber Group BallonSawmillMurray Timber Group | Ireland | - | Operating | No data yet |
| Murray Timber Group BallygarSawmillMurray Timber Group | Ireland | - | Operating | 300 000 m3/y sawn timberestimated from 600 000 m3/y log intake |
| N K Lundströms TrävarorSawmillN K Lundströms Trävaror AB | Sweden | Softwood | Operating | No data yet |
| Nechako Lumber (Vanderhoof)SawmillNechako Lumber Co. | Canada | Softwood | Operating | 342 954 m3/y sawn timber |
| Neuschmied Holz HopfgartenSawmillNeuschmied Holz GmbH | Austria | - | Operating | 66 000 m3/y sawn timberestimated from 132 000 m3/y log intake |
| NewLife Forest Restoration BellemontSawmillNewLife Forest Restoration | United States | Softwood | Operating | No data yet |
| Niagara Sawmilling SouthlandSawmillNiagara Sawmilling Company | New Zealand | Softwood | Operating | No data yet |
| Nordanå TräSawmillNordanå Trä AB | Sweden | Softwood | Operating | 67 500 m3/y sawn timber |
| Nordwood AegviiduSawmillAS Aegviidu Puit | Estonia | Softwood | Operating | No data yet |
| Nordwood ViiratsiSawmillAS Viiratsi Saeveski | Estonia | Softwood | Operating | No data yet |
| Nordwood Viru-NigulaSawmillAS Viru-Nigula Saeveski | Estonia | Softwood | Operating | No data yet |
| Nørlund SavværkSawmillNorlund A/S | Denmark | Softwood | Operating | 180 000 m3/y sawn timber |
| NorSask Forest Products (Meadow Lake)SawmillNorSask Forest Products LP | Canada | Softwood | Operating | No data yet |
| North Enderby TimberSawmillNorth Enderby Timber Ltd. | Canada | Softwood | Operating | 103 565 m3/y sawn timber |
| North Florida LumberSawmillNorth Florida Lumber | United States | Softwood | Operating | No data yet |
| Northern Timbers (Merensky) TzaneenSawmillNorthern Timbers | South Africa | Hardwood | Operating | No data yet |
| Novoyeniseysky LKhKSawmillNovoyeniseysky Wood Chemical Complex (LKhK) | Russia | Softwood | Operating | 500 000 m3/y sawn timber |
| Nydala TrävaruSawmillNydala Trävaru AB | Sweden | Softwood | Operating | 100 000 m3/y sawn timber |
| Oksbøl SavværkSawmillOksbøl Savværk 2020 ApS | Denmark | Mixed | Operating | No data yet |
| OLWO WorbSawmillOLWO AG | Switzerland | Softwood | Operating | 25 000 m3/y sawn timberestimated from 50 000 m3/y log intake |
| OneFortyOne Jubilee Wood Products (Mount Gambier)SawmillOneFortyOne | Australia | - | Operating | 375 000 m3/y sawn timberestimated from 750 000 m3/y log intake |