Lymphatic filariasis is a major public health problem in India. It is routinely examined in night peripheral blood smears. Fine-needle aspiration cytology (FNAC) is not routinely used for its identification. It has always been detected incidentally, while doing FNACs for evaluation of other lesions. It is unusual to find microfilariae in fine needle aspiration cytology (FNAC) smears of lymph nodes in spite of very high incidence in India. In the absence of clinical features of filariasis, FNAC may help in the diagnosis of lymphatic filariasis. We present this case because of unusual occurrence of isolated lymph node filariasis (occult filariasis) without microfilaremia.