- For the Canadian author, see W. P. Kinsella.
He is the son of physician and medical ethicist Douglas Kinsella, C.M., founder of the National Council on Ethics in Human Research (NCEHR). Kinsella holds a Bachelor's degree in Journalism from Carleton University and a Bachelor of Laws degree from the University of Calgary.
As a teenager Kinsella was the bassist, lead singer and co-writer for the Calgary punk band The Hot Nasties. Their songs "Barney Rubble Is My Double" and "Invasion of the Tribbles" have been performed by The Evaporators and Palma Violets respectively, and Damian Abraham of Fucked Up has been quoted as saying that he wants the Nasties' "Secret of Immortality" played at his funeral.
Campaign strategist and lobbyist
Kinsella bills himself as the "Prince of Darkness" of Canadian politics, although he has not worked on a national campaign since 2000. (He left Liberal leader Michael Ignatieff's team before the election of 2011.)  He worked as a staffer in then-Opposition leader Jean Chretien's office and as a strategist in the Canadian federal Liberal Party's 1993 election campaign "task force." After the Liberals won the election, Kinsella became chief of staff to federal Public Works minister David Dingwall. In that job, he had a role in the hiring of Chuck Guite to run the government's advertising. After Kinsella left Dingwall's staff, Guite created an ad kickback regime that had a serious role in the defeat of the Liberals in 2006. Kinsella ran as a Liberal candidate in the 1997 federal election in the riding of North Vancouver but was defeated by Reform incumbent Ted White. After the 2000 federal election, he concentrated mainly on Ontario provincial politics, although he did work periodically for federal Liberal politicians Allan Rock, Stephane Dion, Sheila Copps and Michael Ignatieff. Kinsella was also involved in the 2007 and 2011 re-election campaigns of Ontario premier Dalton McGuinty and his Ontario Liberal Party. Kinsella supported Sandra Pupatello in the 2013 leadership convention that chose a successor to McGuinty. The leadership was won by Kathleen Wynne.
After practicing with the law firm MacMillan Binch, he joined the Toronto-based Navigator consulting firm and later started his own company, Daisy Consulting. Both of the latter firms engage in paid political campaign strategy work, lobbying and communications crisis management.
Kinsella worked as a student reporter at the Ottawa Citizen and Calgary Herald and has written commentary in most of Canada's major newspapers and several magazines. His opinion pieces and analysis appeared in the Globe and Mail, the Ottawa Citizen, the National Post and The Walrus. He is now a columnist for the right-wing tabloid Toronto Sun and smaller English-language Quebecor newspapers and also appears regularly on the Sun News Network.
- Unholy Alliances (Lester, 1992)
- Web of Hate: Inside Canada's Far Right Network(HarperCollins, 1997)
- Party Favours (HarperCollins, 1997)
- Kicking Ass in Canadian Politics (Random House, 2001)
- Fury's Hour: A (sort-of) Punk-Rock Manifesto (Random House, 2005)
- The War Room: Political Strategies for Business, NGOs, and Anyone Who Wants to Win (Dundurn Press, 2007)
- Fight the Right: A Manual for Surviving the Coming Conservative Apocalypse (Random House, Oct 2 2012)
- National Council on Ethics in Human Research
- Kinsella, Warren (1999-2014). "Nasty Past". warrenkinsella.com. Retrieved 2014-01-21.