Husks forms about 60–80% of the weight of the fresh areca fruit and is hence the major byproduct generated during areca processing. Husks are lignocellulosic with considerably high lignin content of up to 30%. Despite being a major byproduct that is available at a low cost and having unique properties, presently, most of the husks are disposed of as waste. However, considerable attempts have been made to utilize the husks as a source for fibers, fuel, sorbent for pollutants, and production of enzymes. Husks made into briquettes have shown high calorific values, and similarly, cellulose in the husks could be converted relatively easily into ethanol. Husks have also shown potential for sorption of high amounts of pollutants, including dyes and other chemicals. Natural cellulose fibers suitable for textiles and composites, and nanocellulose suitable for paper and packaging applications, could also be derived from the husks.