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Coffee is one of the most popular beverages in the world and its consumption generates copious amounts of waste. The most relevant by-product of the coffee industry are the spent coffee grounds, with 6 million tons being produced worldwide per year. Although generally treated as waste, spent coffee grounds are a rich source of several bioactive compounds, with applications in diverse industrial fields. The present work aimed the analysis of spent coffee grounds from different geographical origins (Guatemala, Colombia, Brazil, Timor, and Ethiopia) for the identification of bioactive compounds with industrial interest. For this purpose, the volatile fingerprint was established by headspace solid phase microextraction coupled with gas chromatography mass spectrometry (HS-SPME/GC-MS). Additionally, the bioactive and antioxidant potential was assessed through a µ-QuEChERS methodology coupled to …