| 2018 season | |||
|---|---|---|---|
 Patrick Dangerfield preparing to mark the ball during the Cats' round 20 match | |||
| President | Colin Carter | ||
| Coach | Chris Scott (8th season) | ||
| Captain(s) | Joel Selwood (7th season) | ||
| Home ground | GMHBA Stadium | ||
| AFL season | 8th | ||
| Finals series | Elimination final | ||
| Best and Fairest | Mark Blicavs | ||
| Leading goalkicker | Tom Hawkins (60) | ||
| Highest home attendance | 73,189 vs. Hawthorn (Round 2) | ||
| Lowest home attendance | 24,507 vs. Fremantle (Round 22) | ||
| Average home attendance | 34,207 | ||
| Club membership | 63,818 | ||
| |||
The 2018 season was the Geelong Football Club's 119th in the Australian Football League (AFL). It was the club's eighth season under senior coach Chris Scott, with Joel Selwood appointed as club captain for a seventh successive year. Geelong (known as the Cats) participated in both the inaugural AFLX competition and the 2018 JLT Community Series as part of their pre-season schedule, and the club's regular season began on 25 March against Melbourne at the Melbourne Cricket Ground (MCG). The Cats finished the home-and-away season with a 13–9 win–loss record and placed eighth on the league's ladder, qualifying for the 2018 finals series as a result. Geelong were defeated in an elimination final against Melbourne by 29 points, and therefore did not progress past the first finals week.
Mark Blicavs was named Geelong's best and fairest player, polling 234 votes for the Carji Greeves Medal ahead of joint runners-ups Patrick Dangerfield and Tim Kelly on 233.5 votes each. It was Blicavs' second Carji Greeves Medal, having previously won the award for the 2015 season. Tom Hawkins was the club's leading goalkicker for the seventh successive season, scoring 60 goals. Dangerfield and Tom Stewart were selected in the 2018 All-Australian team, with Stewart also receiving the AFL Coaches Association's Best Young Player award. The Cats also fielded a reserves team in the Victorian Football League (VFL) and a women's team in the VFL Women's (VFLW) competition. The women's team finished runners-up after they were defeated in the VFLW Grand Final by Hawthorn.