Chief of Staff· 2023 — sitting
Femi Gbajabiamila
Immediate past Speaker of the House of Representatives (2019–23). Sitting Chief of Staff under Tinubu.
The record
Olufemi Hakeem Gbajabiamila (b. 1962), Lagos lawyer and APC stalwart, was Majority Leader of the 8th House of Representatives and Speaker of the 9th House (2019–2023). He was appointed Chief of Staff to President Bola Ahmed Tinubu on 29 May 2023.
Methodology
Tier 1 · primary
Courts. Gazettes. National archives.
Tier 2 · corroborating
OCCRP. HRW. BudgIT. TheCable.
Tier 4 · tertiary, flagged
Wikipedia only where primary is pending. Always labelled.