Nicolle Wallace (née Devenish; born February 4, 1972) is an American television political commentator and author. She is the anchor of the MS NOW news and politics program Deadline: White House and a former co-host of the ABC daytime talk show The View. Wallace is a political analyst for MS NOW and NBC News. She was previously a frequent on-air contributor to the programs Today, The 11th Hour with Stephanie Ruhle, and Morning Joe.

Wallace served as the White House Communications Director during the second term of the presidency of George W. Bush, having been the Communications Director for his 2004 re-election campaign. She was a senior advisor for John McCain's 2008 presidential campaign. Additionally, she has authored the contemporary political novels Eighteen Acres, It's Classified, and Madam President.

Nicolle Devenish was born on February 4, 1972, in Orange County, California, to Clive and Veronica (née Zadis) Devenish. She is of English and Greek descent. Her mother was a teacher's assistant for third grade in public schools, and her father was an antiques dealer. Her grandfather Thomas Devenish was a Manhattan antiques dealer, part of Devenish and Company. Nicolle has three younger siblings: Zachary, Courtney, and Ashley. They were raised in Orinda, California, a mostly wealthy San Francisco Bay Area suburb.

After graduating in 1990 from Miramonte High School, Wallace earned a B.A. in mass communications in 1994 from the University of California, Berkeley. Thereafter, she attended Medill School of Journalism at Northwestern University, earning a master's degree in 1996.

Briefly an on-air reporter in California, Wallace started her political career working in California state politics for Republican Leader, Assemblyman Scott Baugh, a 2024 candidate for California's 47th Congressional District. In 1999, she moved to Florida to serve as Governor Jeb Bush's press secretary and then became the Communications Director for the Florida State Technology Office in 2000. Wallace worked on the 2000 Florida election recount.

Wallace joined the White House staff during George W. Bush's first term, serving as special assistant to the President and director of media affairs, where she oversaw regional press strategy and outreach. In 2003, Wallace joined Bush's 2004 presidential campaign as its communications director, wherein according to The New York Times she "delivered her political attacks without snarling."

On January 5, 2005, Bush named Wallace White House Communications Director. The New York Times story announcing her presidential appointment carried the headline: "New Aide Aims to Defrost the Press Room" and described Wallace's intentions "to improve the contentious relationship between a secretive White House and the press." According to The Washington Post, Wallace served as "a voice for more openness with reporters", and former colleagues describe Wallace as having been "very persuasive in the halls of the West Wing." She left the White House in July 2006 to relocate to New York City, where her husband Mark was representing the Bush administration at the United Nations. Her White House colleague, presidential political advisor Mark McKinnon, called her a "rare talent in politics."

Wallace served as a senior advisor for the John McCain 2008 presidential campaign. She appeared frequently on network and cable news programs as the campaign's top spokesperson and defender. In late October 2008, campaign aides criticized vice-presidential candidate Sarah Palin. One unnamed McCain aide said Palin had "gone rogue," placing her own perceived future political interests ahead of the McCain–Palin ticket, directly contradicting her running mate's positions, and disobeying campaign managers' directions. In response to reports of dissension within the McCain–Palin campaign, Wallace issued a statement to both Politico and CNN saying, "If people want to throw me under the bus, my personal belief is that the most honorable thing to do is to lie there."