H. A. Hellyer is a British geopolitical analyst, and scholar in security studies, political economy, history, and belief.

He is a senior associate fellow in international security studies at the Royal United Services Institute.

[7] Hellyer was appointed as deputy convener of the United Kingdom taskforce on tackling radicalization and extremism after the 7/7 bombings in London in 2005.

[6] He was appointed as Deputy Convenor of the UK government's Taskforce on Tackling Radicalisation and Extremism in the aftermath of the 2005 London bombings.

[6] Hellyer was a Ford Fellow of the Center for Middle East Policy at the Brookings Institution,[9] as well as a UN Alliance of Civilizations (UNAOC) Global Expert.