颗粒燃料（英语：Pellet fuel）是从生物质压缩制成的供暖燃料。最常用类型是木颗粒。作为木头燃料的一种形式，木颗粒通常从锯木及其他木制品产生的压实的锯末或其他废物制成。其他木本生物质能源包括棕榈核壳，椰子壳，以及整树移除或在伐木之后剩余的树梢和树枝等，否则有助于补充土壤养分。还有草类也可以颗粒化，形成草颗粒。颗粒被制造成几种类型和等级燃料用于发电厂，家庭，和在两者之间其他应用。颗粒是非常致密的并可制备低含水量（低于10％），使它们能够以非常高的燃烧效率被焚烧。

此外，它们的规则的几何形状和小尺寸使自动送料能做到非常精细的校准。它们可以通过螺旋推运器进料或由气动输送供给到燃烧器。它们的高密度也允许紧凑的存储和合理的长距离运输。它们可丛罐车方便地被吹入至在客户的场所的储仓或筒仓。

Pellet fuels (or pellets) are biofuels made from compressed organic matter or biomass. Pellets can be made from any one of five general categories of biomass: industrial waste and co-products, food waste, agricultural residues, energy crops, and virgin lumber. Wood pellets are the most common type of pellet fuel and are generally made from compacted sawdust and related industrial wastes from the milling of lumber, manufacture of wood products and furniture, and construction. Other industrial waste sources include empty fruit bunches, palm kernel shells, coconut shells, and tree tops and branches discarded during logging operations. So-called "black pellets" are made of biomass, refined to resemble hard coal and were developed to be used in existing coal-fired power plants. Pellets are categorized by their heating value, moisture and ash content, and dimensions. They can be used as fuels for power generation, commercial or residential heating, and cooking. Pellets are extremely dense and can be produced with a low moisture content (below 10%) that allows them to be burned with a very high combustion efficiency.