|2018 Miami Dolphins season|
|Owner||Stephen M. Ross|
|Head coach||Adam Gase|
|General manager||Chris Grier|
|Home field||Hard Rock Stadium|
|Division place||2nd AFC East|
|Playoff finish||Did not qualify|
|Pro Bowlers||CB Xavien Howard|
The 2018 season was the Miami Dolphins' 49th in the National Football League, their 53rd overall and their third and last under head coach Adam Gase. During the offseason, the Dolphins tweaked their uniforms and shade of orange to better align with their classical past and history. For the second straight season, they also brought back their throwback uniforms from the Shula/Marino eras and wore them for three games.
With quarterback Ryan Tannehill playing for the first time since 2016, the highlight of Dolphins' season came during a memorable Week 14 win against division rival and defending back-to-back AFC champion New England Patriots, which prevented the Patriots from clinching the AFC East that week. However, the Dolphins squandered the momentum and would lose all of their remaining games and missed the playoffs for the second consecutive year. The 7-9 finish was their first since 2012 and also the team's second consecutive losing season, with all 7 wins decided by one possession scores and not winning a playoff game for the 17th straight year. They did start off with a 3-0 record but then they finished 7-9.
|WR||Danny Amendola||32||New England Patriots||2 years, $12 million|
|RB||Brandon Bolden||28||1 year, $850,000|
|RB||Frank Gore||35||Indianapolis Colts||1 year, $1.015 million|
|QB||Brock Osweiler||27||Denver Broncos||1 year, $880,000|
|G||Josh Sitton||31||Chicago Bears||2 years, $18 million|
|WR||Albert Wilson||25||Kansas City Chiefs||3 years, $24 million|
|DT||Ndamukong Suh||31||Los Angeles Rams||1 year, $14 million|
|C||Mike Pouncey||29||Los Angeles Chargers||2 years, $15 million|
|2||42||Mike Gesicki||TE||Penn State|
|3||73||Jerome Baker||OLB||Ohio State|
|4||123||Durham Smythe||TE||Notre Dame||From Carolina via Cleveland|
|131||Kalen Ballage||HB||Arizona State||From New England via Philadelphia|
|6||209||Cornell Armstrong||CB||Southern Miss||From Kansas City|
|7||227||Quentin Poling||LB||Ohio||From San Francisco|
|229||Jason Sanders||K||New Mexico|
|1||Tampa Bay Buccaneers||L 24-26||0-1||Hard Rock Stadium||Recap|
|2||at Carolina Panthers||L 20-27||0-2||Bank of America Stadium||Recap|
|3||Baltimore Ravens||L 10-27||0-3||Hard Rock Stadium||Recap|
|4||at Atlanta Falcons||W 34-7||1-3||Mercedes-Benz Stadium||Recap|
The Dolphins' 2018 schedule was finalized and announced on April 19.
|1||September 9||Tennessee Titans||W 27-20||1-0||Hard Rock Stadium||Recap|
|2||September 16||at New York Jets||W 20-12||2-0||MetLife Stadium||Recap|
|3||September 23||Oakland Raiders||W 28-20||3-0||Hard Rock Stadium||Recap|
|4||September 30||at New England Patriots||L 7-38||3-1||Gillette Stadium||Recap|
|5||October 7||at Cincinnati Bengals||L 17-27||3-2||Paul Brown Stadium||Recap|
|6||October 14||Chicago Bears||W 31-28 (OT)||4-2||Hard Rock Stadium||Recap|
|7||October 21||Detroit Lions||L 21-32||4-3||Hard Rock Stadium||Recap|
|8||at Houston Texans||L 23-42||4-4||NRG Stadium||Recap|
|9||November 4||New York Jets||W 13-6||5-4||Hard Rock Stadium||Recap|
|10||November 11||at Green Bay Packers||L 12-31||5-5||Lambeau Field||Recap|
|12||November 25||at Indianapolis Colts||L 24-27||5-6||Lucas Oil Stadium||Recap|
|13||December 2||Buffalo Bills||W 21-17||6-6||Hard Rock Stadium||Recap|
|14||December 9||New England Patriots||W 34-33||7-6||Hard Rock Stadium||Recap|
|15||December 16||at Minnesota Vikings||L 17-41||7-7||U.S. Bank Stadium||Recap|
|16||December 23||Jacksonville Jaguars||L 7-17||7-8||Hard Rock Stadium||Recap|
|17||December 30||at Buffalo Bills||L 17-42||7-9||New Era Field||Recap|
Note: Intra-division opponents are in bold text.
Due to two weather delays, the game lasted for 7 hours and 10 minutes, the longest game since the AFL-NFL merger in 1970. Coincidentally, wide receiver Danny Amendola met with former teammates Malcolm Butler and Dion Lewis. The three played for the New England Patriots from 2015 to 2018 and helped them win Super Bowl LI over the Atlanta Falcons.
With the win, the Dolphins improved to 3-0, their first such start since 2013.
A last-second field goal kick by Jason Saunders barely averted a tie and gave the Dolphins the win in overtime.
The Dolphins were seeking their first win over the Lions since 2006.
This was the Dolphins' first loss to the Vikings since 2002.
With the loss, the Dolphins were eliminated from playoff contention.
|(2)New England Patriots||11||5||0||.688||5-1||8-4||436||325||W2|
|New York Jets||4||12||0||.250||1-5||3-9||333||441||L3|
|1[a]||Kansas City Chiefs||West||12||4||0||.750||5-1||10-2||.480||.401||W1|
|2[b]||New England Patriots||East||11||5||0||.688||5-1||8-4||.482||.494||W2|
|5[a]||Los Angeles Chargers||West||12||4||0||.750||4-2||9-3||.477||.422||W1|
|Did not qualify for the postseason|
|15[d]||New York Jets||East||4||12||0||.250||1-5||3-9||.506||.438||L3|