List of 2021 box office number-one films in the United States

This is a list of films which placed number one at the weekend box office for the year 2021.

Number-one films

#	Weekend end date	Film	Gross	Notes	Ref
1	January 3, 2021	Wonder Woman 1984	$5,500,000
2	January 10, 2021		$3,000,000
3	January 17, 2021	The Marksman	$3,104,204
4	January 24, 2021		$2,029,944
5	January 31, 2021	The Little Things	$4,700,000

Highest-grossing films

See also: 2021 in film § Highest-grossing films

In-Year Release

Highest-grossing films of 2021 by In-year release

Rank	Title	Distributor	Domestic gross
1.	The Marksman	Open Road Films	$7,886,132
2.	The Little Things	Warner Bros.	$4,700,000
3.	Our Friend	Gravitas Ventures	$311,060
4.	Supernova	Bleecker Street	$93,616
5.	No Man's Land	IFC Films	$78,305
6.	Psycho Goreman	RLJE Films	$54,692
7.	MLK/FBI	IFC Films	$42,909
8.	Shadow in the Cloud	Vertical Entertainment / Redbox	$40,000
9.	Some Kind of Heaven	Magnolia Pictures	$32,850
10.	The Night	IFC Films	$11,010

Highest-grossing films by MPAA rating of 2021

G	N/A
PG	N/A
PG-13	The Marksman
R	The Little Things

See also

• Lists of American films — American films by year
• Lists of box office number-one films