Allison Langdon is an Australian television presenter, journalist, reporter and author. She is currently the host of A Current Affair and a presenter and reporter on localised version of current affairs program 60 Minutes.

Langdon was previously co-host of breakfast television program Today alongside Karl Stefanovic and Weekend Today.

Langdon was born in Wollongong and moved to Wauchope at age seven. She attended Wauchope High School and Port Macquarie's MacKillop Senior College. During her time at school, she presented radio programs on Monday evenings on the local community radio station 2WAY FM, which is based in Wauchope. After leaving school, she studied journalism at Charles Sturt University.

Langdon joined the Nine Network after completing her journalism degree, which included an internship with CBS in New York City. She began her media career as a producer for Nightline in 2001.

In 2002, Langdon worked as a producer for the 6:00pm bulletin of National Nine News. Seeking more on-the-road experience, Langdon moved to Nine's Darwin newsroom and, in her first year in the Top End, won the David Marchbank Award for best new journalist. Alongside her round as political reporter for the Northern Territory, Langdon travelled to Mexico and East Timor covering stories for news and the Sunday program.

Langdon was one of the first Australian journalists on the ground following the Australian Embassy bombing in Jakarta in September 2004. She filed daily for all of Nine's bulletins.

In 2008, Langdon released her first book; The Child Who Never Was: Looking for Tegan Lane, which examined the murder of newborn infant Tegan Lane by her mother Keli Lane.

In February 2009, Langdon was criticised for her reporting in Marysville, Victoria, which had been devastated by the Black Saturday bushfires, and where 34 people had died. The town was sealed off as a crime scene, but Langdon and her camera crew helicoptered into the scene despite a police ban on entering the town.