Krishnagiri may refer to:
Krishnagiri, a city in the Indian state of Tamil Nadu Krishnagiri district, in the same state Krishnagiri taluk, in the district Krishnagiri block, in the district Krishnagiri (Lok Sabha constituency), a constituency of the Parliament of India Krishnagiri (state assembly constituency), a constituency of the Legislative Assembly of Tamil Nadu Krishnagiri, Wayanad district, a village in the Indian state of Kerala Krishnagiri, Kurnool district, a village in the Indian state of Andhra Pradesh.