KALU (89.3 FM) is a non-commercial educational radio station broadcasting an urban contemporary music format with some talk radio programming, licensed to Langston, Oklahoma, USA. Established in 1975, the station is owned by Langston University. KALU is operated by the University's Department of Broadcast Journalism and School of Arts and Sciences
Kalu (also known as Harbu) is one of the woredas in the Amhara Region of Ethiopia. Part of the Debub Wollo Zone, Kalu is bordered on the west by Dessie Zuria, on the north by Were Babu, on the south and east by the Oromia Zone, on the southeast by Argobba special woreda, and on the southwest by Abuko. The administrative center for this woreda is Harbu; other towns in Kalu include Ancharo, Gerba and Degan. A highway linking Kombolcha and Afar bisects Kalu to two parts.
Kalu is both a surname and a given name. Notable people with the name include:
- Orji Uzor Kalu, Nigerian politician
- Maxwell Kalu, Nigerian footballer
- Kalu Rinpoche (1905–1989), Tibetan Buddhist
- Ikechukwu Kalu, Nigerian footballer