|Duration||September 19 – December 19, 1927|
|Champions||New York Giants|
The 1927 NFL season was the eighth regular season of the National Football League. Prior to the season, the league decided to eliminate the financially weaker teams. As a result, the league dropped from 22 to 12 teams. The league absorbed many players and one franchise (the New York Yankees) from the defunct American Football League. Wilfrid Smith in the Chicago Tribune wrote that "the reduction formed a more compact circuit and provided better competition."  Smith opined that the "outstanding feature" of the 1927 NFL season was the debut of Benny Friedman who became one of the game's "best drawing cards" and proved that professional football could support itself in Cleveland. 
Although five black players participated in the 1926 season (including future Hall of Famer Fritz Pollard), none played during the 1927 season.
The New York Yankees were added from the American Football League (albeit technically as a continuation of the defunct Brooklyn franchise), Cleveland Bulldogs returned and Buffalo Rangers returned to the Buffalo Bisons name. The Bisons suspended operations five games into the season (all losses). The Rochester Jeffersons remained officially inactive for the second consecutive year.
The axed teams were Kansas City Cowboys, Los Angeles Buccaneers, Detroit Panthers, Hartford Blues, Brooklyn Lions, Canton Bulldogs, Milwaukee Badgers, Akron Indians, Racine Tornadoes, Columbus Tigers, Hammond Pros, and Louisville Colonels. The excising of the majority of the Ohio teams left the Dayton Triangles as the last surviving connection to the Ohio League, which served as the basis for the NFL's founding. The Triangles themselves are the only remaining Ohio League member that can arguably be considered a team that remains active to the present day, as the franchise, in some form, never missed a season and now operates as the Indianapolis Colts, just 117 miles to the west of their origin.
The New York Giants were named the NFL champions after finishing the season with the best record. The Giants performance was notable, particularly on defense. They allowed only 20 points in 13 games, including 10 shutout victories.
The league dropped from 22 teams in 1926 to 12 teams in 1927.
|Rejoined the NFL †||Merged from 1926 AFL *|
|Last active season ^||Last season before hiatus, rejoined league later §|
|Buffalo Bisons §||Dim Batterson||Bison Stadium|
|Chicago Bears||George Halas||Wrigley Field|
|Chicago Cardinals||Guy Chamberlain||Normal Park|
|Cleveland Bulldogs †||Roy Andrews||Dunn Field|
|Dayton Triangles||Lou Mahrt||Triangle Park|
|Duluth Eskimos ^||Ernie Nevers||Traveling team|
|Frankford Yellow Jackets||Charley Moran (8 games), Russ Daugherty, Charley Rogers, Ed Weir and Swede Youngstrom (10 games)||Frankford Stadium|
|Green Bay Packers||Curly Lambeau||City Stadium|
|New York Giants||Earl Potteiger||Polo Grounds|
|New York Yankees *||Ralph Scott||Yankee Stadium|
|Pottsville Maroons||Dick Rauch||Minersville Park|
|Providence Steam Roller||Jimmy Conzelman||Cycledrome|
The goal posts were moved to the end line. They were later moved to the goal line from 1933 to 1973, but since 1974, have remained on the end line.
After seven weeks, the Chicago Bears were unbeaten at 5–0–1, followed by the once-beaten New York Giants (6–1–1) and Green Bay Packers (5–1–1). Two games played in New York City on Tuesday, November 8, changed the standings. The New York Yankees handed the Bears a 26–6 defeat, while the Giants beat Providence, 25–0. At 7–1–1, the Giants were in first place, while the Bears and Packers were tied for second (5–1–1). On November 20, the Bears beat the visiting Packers, 14–6, and, at 7–1–1, were within striking distance of the 8–1–1 Giants. Thanksgiving Day, however, saw the Bears lose at Wrigley Field to their crosstown rivals, the Chicago Cardinals.
With three games left, the most important game of the regular season took place on November 27, at the Polo Grounds, where 15,000 turned out to watch the Bears (7–2–1) face the Giants (8–1–1). A Bears' win would have tied the teams for first place, but the Giants won, 13–7. The New York Giants and New York Yankees closed their seasons with a two-game series. At home at the Polo Grounds, the Giants beat the Yankees 14–0 to clinch the title on December 4, and then beat them again at the old Yankee Stadium on December 11, to finish at 11–1–1.
|New York Giants||11||1||1||.917||197||20||W9|
|Green Bay Packers||7||2||1||.778||113||43||W1|
|Providence Steam Roller||8||5||1||.615||105||88||W3|
|New York Yankees||7||8||1||.467||142||174||L4|
|Frankford Yellow Jackets||6||9||3||.400||152||166||L1|
Note: Tie games were not officially counted in the standings until 1972.
The Cleveland Bulldogs were a team that played in Cleveland, Ohio in the National Football League. They were originally called the Indians in 1923, not to be confused with the Cleveland Indians NFL franchise in 1922. However, after team owner Samuel Deutsch purchased the Canton Bulldogs in 1924, he merged the Canton team with his Indians and renamed his franchise the Cleveland Bulldogs. The Canton Bulldogs remained a part of the team until 1925, when they were sold back to Canton. The Cleveland Bulldogs played in the NFL until 1928 when they were relocated to Detroit and became the Detroit Wolverines. The team was later incorporated into the New York Giants in 1929. The Cleveland Bulldogs won the 1924 NFL championship.
Buffalo, New York had a turbulent, early-era National Football League team that operated under multiple names and several different owners between the 1910s and 1920s. The early NFL-era franchise was variously called the Buffalo All-Stars from 1915 to 1917, Buffalo Niagaras in 1918, the Buffalo Prospects in 1919, Buffalo All-Americans from 1920 to 1923, Buffalo Bisons from 1924 to 1925 and in 1927 and 1929, and the Buffalo Rangers in 1926. The franchise, which was experiencing financial problems in 1928, did not participate in league play that season.
The Dayton Triangles were an original franchise of the American Professional Football Association in 1920. The Triangles were based in Dayton, Ohio, and took their nickname from their home field, Triangle Park, which was located at the confluence of the Great Miami and Stillwater Rivers in north Dayton. They were the longest-lasting traveling team in the NFL (1920–1929), and the last such "road team" until the Dallas Texans in 1952, who, coincidentally, descended from the Dayton franchise.
The Rock Island Independents were a professional American football team, based in Rock Island, Illinois, from 1907 to 1926. The Independents were a founding National Football League franchise. They hosted what has been retrospectively designated the First National Football League Game on September 26, 1920 at Douglas Park. The Independents were founded in 1907 by Demetrius Clements as an independent football club. Hence, the team was named the "Independents."
The Staten Island Stapletons also known as the Staten Island Stapes were a professional American football team founded in 1915 that played in the National Football League from 1929 to 1932. The team was based in the Stapleton section of Staten Island. They played under the shortened nickname the "Stapes" the final two seasons. Jack Shapiro, who was a blocking back for the Stapletons, was the shortest player in NFL history.
The New York Yanks were an American football team that played in the National Football League under that name in the 1950 and 1951 seasons.
The 1929 NFL season was the tenth regular season of the National Football League. The league increased back to 12 teams with the addition of the Staten Island Stapletons, Orange Tornadoes and Minneapolis Red Jackets and the re-entry of the Buffalo Bisons. The Pottsville Maroons became the Boston Bulldogs, the New York Yankees folded, and the Detroit Wolverines merged into the New York Giants, with the Giants the surviving partner.
The 1930 NFL season was the 11th regular season of the National Football League.
The 1938 NFL season was the 19th regular season of the National Football League. The season ended when the New York Giants defeated the Green Bay Packers in the NFL Championship Game.
The 1945 NFL season was the 26th regular season of the National Football League. The Pittsburgh Steelers and the Chicago Cardinals resumed their traditional operations.
The 1950 NFL season was the 31st regular season of the National Football League. The merger with the All-America Football Conference (AAFC) expanded the league to 13 teams. Meanwhile, television brought a new era to the game. The Los Angeles Rams became the first NFL team to have all of its games – both home and away – televised. The Washington Redskins became the second team to put their games on TV. Other teams arranged to have selected games televised.
The 1952 NFL season was the 33rd regular season of the National Football League. Prior to the season, the legacy of the Dayton Triangles, the final remaining Ohio League member and the franchise then known as the New York Yanks owner Ted Collins sold his team back to the NFL. A few days later, a new team was then awarded to an ownership group in Dallas, Texas, after it purchased the assets of the Yanks.
Throughout the years, a number of teams in the National Football League (NFL) have either moved or merged.
Timothy James Mara was the founding owner of the New York Giants of the National Football League (NFL). The Giants, under Mara, won NFL championships in 1927, 1934, 1938, and 1956 and divisional titles in 1933, 1935, 1939, 1941, 1944, 1946, and 1958.
The first American Football League (AFL), sometimes called AFL I, AFLG, or the Grange League, was a professional American football league that operated in 1926. It was the first major competitor to the National Football League (NFL). Founded by Charles "C.C." Pyle, (1882–1939), and General Charles X. Zimmerman, (1865–1926), as vice president and starring Hall of Fame halfback Harold Edward "Red" Grange, (1903–1991), the short-lived league with nine teams competed against the more established – then six-year-old – NFL, both for players and for fans. While Pyle's and Grange's New York Yankees team and the already established Philadelphia Quakers became reliable draws, the lack of star power and the uncertain financial conditions of the other seven teams led to the league's dissolution after one season.
The 1925 New York Giants season was the franchise's inaugural season in the National Football League. The team finished with a record of 8–4 against league opponents.
The 1927 New York Giants season was the franchise's 3rd season in the National Football League, and first under head coach Earl Potteiger. The Giants suffered their only loss and sole tie to the Cleveland Bulldogs. They were ranked first in yards allowed, yards gained, and points allowed, and were second in points scored. Over the entire season, the Giants scored 197 points and allowed 20. The team was led in scoring by fullback Jack McBride who scored 57 points, with six rushing touchdowns, two field goals, and 15 extra points. They then lost an exhibition game on December 26, 1927, in Oklahoma to Otto and Ira Hamilton's Hominy Indians, 13–6.
The American Association (AA) was a professional American football league based in New York City. Founded in 1936 as a minor league with teams in New York and New Jersey, the AA extended its reach to Providence, Rhode Island prior to the onset of World War II. After a four-year hiatus, the league was renamed the American Football League as it expanded to include teams in Ohio and Pennsylvania. In 1947, the Richmond Rebels of the Dixie League purchased the assets of the defunct AFL Long Island Indians and jumped leagues.
The Los Angeles Wildcats was a traveling team of the first American Football League that was not based in its nominal home city but in Chicago, Illinois. Coached by Jim Clark, the team was designed to be a showcase for University of Washington star back George “Wildcat” Wilson. Compared to most traveling teams in professional football, the Wildcats were successful, compiling a 6–6–2 record in the only season of the team's – and the league's – existence.
The 1951 New York Yanks season was their second as the Yanks, and their final season before the franchise was sold and moved to Dallas. The team failed to improve on their previous season's output of 7–5, winning only one game. They played eight of their twelve games on the road, including seven of the first eight. The sole victory came at Green Bay in early December. The final game against the neighboring Giants drew less than 6,700, played on an icy field with game time temperature of 17 °F (−8 °C).