Objective: The combination of hydatid disease occurring in the ectopic liver (EL) is extremely rare. Herewith, we report clinical case of a hydatid cyst in gallbladder-associated EL. Material and methods: A 49-year old male rectal cancer patient with liver metastasis in Sg 2 and Sg 3 and a hydatid cyst in Sg 4 was reported. Intra operatively, a smooth fragment of reddish-brown tissue of EL attached to gallbladder anterior surface was observed. Results: A small hydatid cyst in EL periphery was detected and ressected en-bloc with the gallbladder. In our clinical case, the find of hydatid cyst in ectopic liver is accidental. We observed a small hydatid cyst locates in ectopic liver attached to the liver. Conclusion: Surgery remains the gold standard treatment for hydatid liver disease. This is the first clinical case about EL and a hydatid cyst we report.