Olatunji Bello (born 1 July 1961) is a Nigerian lawyer, environmentalist, political scientist and journalist who served as Commissioner for Environment and Water Resources under the Babajide Sanwo-Olu administration in Lagos State from 2019 to 2023.

His mainstream national political career started when he served as the special assistant to MKO Abiola, the winner of the annulled 12 June 1993 presidential election.

After the annulment of the epochal election, Bello became a member of the Nigerian pro-democracy group, NADECO, which fought for the actualisation of democracy in Nigeria and was active from 1993 to 1999.

After the transition to democratic rule in 1999, Bello joined the administration of the Lagos State governor, Bola Tinubu.

[13] In 2019, he joined the Babajide Sanwo-Olu administration as Commissioner for Environment and Water Resources, following confirmation by the Lagos State House of Assembly.