First hundred days (alternatively written first 100 days) often refers to the beginning of a leading politician's term in office, and may refer to:
First hundred days, the concept about the first 100 days of a presidency First 100 days of Franklin D. Roosevelt's presidency First 100 days of the Obama presidency First 100 days of the first Trump presidency First 100 days of the Biden presidency First 100 days of the second Trump presidency First 100 days of the Duterte presidency First 100 days of Imran Khan's premiership
Other uses UKIP: The First 100 Days, a 2015 British mockumentary The Story with Martha MacCallum, an American cable news show which premiered as The First 100 Days
See also Hundred Days (disambiguation)