The Eastern Conference is one of Major League Soccer's two conferences, along with the Western Conference. The division of the conferences broadly follows the path of the Mississippi River from the Great Lakes to the Gulf of Mexico, with clubs east of the river in the Eastern Conference.
The 2021 Nashville SC season was the club's second season as a member of Major League Soccer. This was the club's last season in the Eastern Conference after being added to the Conference in 2020 after the MLS is Back Tournament as the club returns to the Western Conference the following season in 2022 due to the addition of Charlotte FC.
The 2021 Columbus Crew season was the club's twenty-sixth season of existence and their twenty-sixth consecutive season in Major League Soccer, the top flight of American soccer. The season covers the period from December 13, 2020, to November 7, 2021. It is the third season under head coach Caleb Porter.
The 2021 New York City FC season was the club's seventh season of competition and its seventh in the top tier of American soccer, Major League Soccer. New York City FC usually played its home games at Yankee Stadium in the New York City borough of The Bronx. Like the 2020 MLS season, the club also played several of their home games at Red Bull Arena in Harrison, New Jersey due to scheduling conflicts with Yankee Stadium and its backup stadium, Citi Field. New York City FC won the clubs' first MLS Cup title by defeating the Portland Timbers 2–4 in penalty shoot-outs with a 1–1 score before going into extra time, in which neither of the teams scored.
The 2022 Rochester New York FC season was the club's 23rd overall and first in MLS Next Pro. It was the first year since 2017 the club has played, and their first season under the Rochester New York FC name, after spending the first 22 seasons branded as the Rochester Raging Rhinos and Rochester Rhinos. The club was the only independent team playing in MLS Next Pro, and was one of the two teams from the league to participate in the 2022 U.S. Open Cup, alongside St. Louis City SC 2.
The 2022 FC Cincinnati 2 season was the inaugural season of FC Cincinnati 2, the reserve team of Major League Soccer club FC Cincinnati. FC Cincinnati 2 competes in MLS Next Pro, a professional developmental league in the third tier of the United States soccer league system.
The 2022 Orlando City B season was the club's fifth season of existence and their first since returning from hiatus during the 2021 season. It is the debut season as a founding member of MLS Next Pro after most recently competing in USL League One.
The 2023 Philadelphia Union season was the club's fourteenth season in Major League Soccer, the top flight of American soccer. The team was managed by Jim Curtin, his tenth season with the club. The club's regular season began on February 25, 2023, and concluded on October 9. Outside of MLS, Philadelphia will participate in the U.S. Open Cup, the CONCACAF Champions League, and the Leagues Cup.
The 2023 Nashville SC season was the fourth season for Nashville SC as a member of Major League Soccer (MLS), the top flight of professional soccer in the United States. After finishing the 2022 season with a playoff berth and a first round exit, the club loaned out Designated Player and forward Aké Arnaud Loba to Mazatlán F.C. and made trades to add depth. Midfielder Hany Mukhtar had finished the previous season as the league's top goalscorer, earning the MLS Golden Boot with 23 goals, and was also won the most valuable player award.
The 2024 New York Red Bulls season was the the club's twenty-ninth season in Major League Soccer, the top division of soccer in the United States. The club made the MLS Cup final for the first time since 2008.
The 2024 Nashville SC season was the fifth season for Nashville SC as a member of Major League Soccer (MLS), the top flight of professional soccer in the United States.
The 2024 Philadelphia Union season was the club's fifteenth season in Major League Soccer, the top flight of American soccer. The team is managed by Jim Curtin, his eleventh season with the club. The club's regular season began on February 20, 2024, opening with the 2024 CONCACAF Champions Cup after earning its berth by placing third in the 2023 Leagues Cup.
The 2025 CF Montréal season will be the club's 32nd season of existence, and their 14th in Major League Soccer, the top tier of the American soccer pyramid.
The 2025 Atlanta United FC season will be the ninth season of Atlanta United FC's existence, and the seventeenth year that a professional soccer club from Atlanta, Georgia will compete in the top division of American soccer. Atlanta United play their home games at Mercedes-Benz Stadium. Outside of MLS, they will compete in the 2025 U.S. Open Cup and the 2025 Leagues Cup.
The 2025 season will be the fourth season for Charlotte FC in Major League Soccer (MLS), the top flight of professional club soccer in the United States.The team is based in Charlotte, North Carolina, and was established in 2019. They made their MLS debut in the 2022 season. The 2025 season will be their second for Charlotte FC under English head coach Dean Smith, who was hired in December 2023 and was the team's third manager.
The 2025 season will be the 10th season for FC Cincinnati and their 7th in Major League Soccer (MLS), the highest level of men's professional soccer in the United States. Their home stadium is TQL Stadium. It is the fourth season with the club for general manager Chris Albright and head coach Pat Noonan.
The 2025 Columbus Crew season will be the club's 30th season of existence and their 30th consecutive season in Major League Soccer, the top flight of soccer in the United States. It will be their third season under head coach Wilfried Nancy.
The 2025 New York City FC season will be the club's eleventh season in Major League Soccer, the top division of soccer in the United States. The club will split its home games between Yankee Stadium and Citi Field, and play their season opener against Inter Miami CF on February 22, 2025.
The 2025 New York Red Bulls season is the the club's thirtieth season in Major League Soccer, the top division of soccer in the United States.
The 2025 Nashville SC season will be the sixth season for Nashville SC as a member of Major League Soccer (MLS), the top flight of professional soccer in the United States.