Kairu is a village in Tosham tehsil of the Bhiwani district in the Indian state of Haryana. Located between the cities of Bahal and Bhiwani, it is the home of Ch. Surender Singh Memorial Herbal Park, Kairu and Chinkara Breeding Centre Kairu, Bhiwani run by Forests Department, Haryana of Government of Haryana.
Kairu is a Panchayat and among one of 61 villages in Tosham Block. Kairu is located on Bahal-Bhiwani road in Kairu village near Bahal in Bhiwani district. Chandigarh is around 244.3 km, Delhi is 130.8 km and Jaipur is 198.0 km from Kairu. The nearby villages are Kairu Khaparbas (2.6 km) and Bijlanawas (3.2 km).
Kairu is connected to nearby villages through the road network with presence of State Transport Service and Private Bus Services which link it to Bhiwani, Hisar and Bahal. Nearest major railway station is Bhiwani.