The Phytochemical, Proximate Nutritional Analysis and anti-nutrient analysis of tiger nut (Cyperus esculentus) were determined and results were expressed in means ± standard. The phytochemical analysis revealed the presence of alkaloids, Glycoside, Flavonoids, Polyphenol, reducing sugar in ethanolic extracts of three samples, which are as follows, sample A (yellow tiger nut), sample B (Brown tiger nut), and sample C (Black tiger nut). The result revealed that the tiger nut were high in polyphenol (21.20±0.1), Flavonoids (8.20±0.1), and reducing sugar (7.20±0.2). The proximate nutritional analysis revealed moisture, ash, crude protein, fat, carbohydrate. Fat (41.30±0.1) has the highest concentration followed by carbohydrate (30.90±0.02) protein (22.20±0.1), while moisture (6.23±0.02), fibre (3.61±0.01) and Ash (3.30±0.01) had low concentration. Anti-nutrient analysis revealed HCN, soluble oxalate, total oxalate, phytate. Total oxalate (42.80±0.01) had the concentration followed by soluble oxalate (18.48±0.02), while HCN (2.81±0.01) and phytate (0.46±0.02) low concentration. This study justifies the use of Cyperus esculentus by individuals to treat various ailments.