A 36-year-old lady presented with progressively enlarging mass in her right breast. Core biopsy showed a benign proliferative breast lesion. Total excision of the mass was done with and the final histopathology features were suggestive of giant fibroadenoma.Keywords: Breast; Giant fibroadenoma; Phylleoyeds any rapid enlargement large breast mass [1]. Since giant fibroadenoma, and phyllodes have different management approach, it is important to distinguish them preoperatively. However, distinguishing them preoperatively is challenging [2]. We report a case of giant fibroadenoma of the breast mimicking phylloides tumor in a 36-year-old lady.