| Club: | Hawthorn Football Club |
| Season: | 1966 |
| President: | Dr. A.S. Ferguson |
| Coach: | Peter O'Donohue |
| Captain: | Graham Arthur |
| Home Ground: | Glenferrie Oval |
| Regularseason Comp: | VFL season |
| Regularseason Result: | 5–13 (9th) |
| Finals Series: | Finals Series |
| Finals Result: | Did not qualify |
| Club B&Amp;F: | Best and Fairest |
| Best And Fairest: | Ray Wilson |
| Leading Goalscorer: | John Peck (32) |
| Highest Attendance: | 21,520 (Round 17 vs.) |
| Lowest Attendance: | 8,429 (Round 16 vs.) |
| Average Attendance: | 14,679 |
| Prevseason: | 1965 |
| Nextseason: | 1967 |
The 1966 season was the Hawthorn Football Club's 42nd season in the Victorian Football League and 65th overall. Following the season John Kennedy Sr. returned as coach.
| Rd | Date and local time | Opponent | Scores (Hawthorn's scores indicated in bold) | Venue | Attendance | Record | |||
|---|---|---|---|---|---|---|---|---|---|
| Home | Away | Result | |||||||
| 1 | Saturday, 23 April (2:20 pm) | 17.13 (115) | 9.8 (62) | Lost by 53 points | Victoria Park (A) | 32,741 | 0–1 | ||
| 2 | Saturday, 30 April (2:20 pm) | 7.14 (56) | 3.11 (29) | Won by 27 points | Glenferrie Oval (H) | 12,054 | 1–1 | ||
| 3 | Saturday, 7 May (2:20 pm) | 14.22 (106) | 7.15 (57) | Lost by 49 points | Lake Oval (A) | 16,894 | 1–2 | ||
| 4 | Saturday, 14 May (2:20 pm) | 9.13 (67) | 14.15 (99) | Lost by 32 points | Glenferrie Oval (H) | 10,816 | 1–3 | ||
| 5 | Saturday, 21 May (2:20 pm) | 10.10 (70) | 4.10 (34) | Lost by 36 points | Western Oval (A) | 12,424 | 1–4 | ||
| 6 | Saturday, 28 May (2:20 pm) | 15.15 (105) | 12.9 (81) | Lost by 24 points | Windy Hill (A) | 15,329 | 1–5 | ||
| 7 | Saturday, 4 June (2:20 pm) | 11.12 (78) | 15.12 (102) | Lost by 24 points | Glenferrie Oval (H) | 17,755 | 1–6 | ||
| 8 | Monday, 13 June (2:20 pm) | 8.13 (61) | 11.14 (80) | Won by 19 points | Brunswick Street Oval (A) | 13,057 | 2–6 | ||
| 9 | Saturday, 18 June (2:20 pm) | 9.13 (67) | 9.9 (63) | Won by 4 points | Glenferrie Oval (H) | 19,504 | 3–6 | ||
| 10 | Saturday, 25 June (2:20 pm) | 17.15 (117) | 8.9 (57) | Lost by 60 points | Kardinia Park (A) | 13,941 | 3–7 | ||
| 11 | Saturday, 9 July (2:20 pm) | 6.13 (49) | 11.13 (79) | Lost by 30 points | Glenferrie Oval (H) | 15,880 | 3–8 | ||
| 12 | Saturday, 16 July (2:20 pm) | 5.7 (37) | 16.14 (110) | Lost by 73 points | Glenferrie Oval (H) | 13,880 | 3–9 | ||
| 13 | Saturday, 23 July (2:20 pm) | 23.13 (151) | 9.5 (59) | Lost by 92 points | Melbourne Cricket Ground (A) | 18,254 | 3–10 | ||
| 14 | Saturday, 30 July (2:20 pm) | 10.16 (76) | 14.17 (101) | Lost by 25 points | Glenferrie Oval (H) | 12,277 | 3–11 | ||
| 15 | Saturday, 6 August (2:20 pm) | 11.16 (82) | 12.11 (83) | Won by 1 point | Arden Street Oval (A) | 5,835 | 4–11 | ||
| 16 | Saturday, 13 August (2:20 pm) | 18.11 (119) | 9.13 (67) | Won by 52 points | Glenferrie Oval (H) | 8,429 | 5–11 | ||
| 17 | Saturday, 20 August (2:20 pm) | 11.13 (79) | 15.10 (100) | Lost by 21 points | Glenferrie Oval (H) | 21,520 | 5–12 | ||
| 18 | Saturday, 27 August (2:20 pm) | 14.9 (93) | 13.5 (83) | Lost by 10 points | Moorabbin Oval (A) | 23,860 | 5–13 | ||
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