This article needs additional citations for verification .(August 2018)  | 
| Season | 2018 | 
|---|---|
← 2017   2019 →   | |
The 2018 III liiga is the 21st season of the III liiga, fifth-highest league for association football clubs in Estonia.
| Number of clubs | 12 | 
|---|---|
| Current champions |  Põhja-Tallinna JK Volta  (2017)  | 
| Website | III liiga | 
The following clubs are competing in II liiga North/East during the 2018 season.
League table
| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Promotion, qualification or relegation | 
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Retro (C, P) | 22 | 17 | 1 | 4 | 80 | 34 | +46 | 52 | Promotion to II Liiga | 
| 2 | Tallinna Zapoos (Q) | 22 | 13 | 2 | 7 | 69 | 52 | +17 | 41 | Qualification to Promotion play-offs | 
| 3 | Harju Laagri | 22 | 13 | 2 | 7 | 55 | 42 | +13 | 41 | |
| 4 | Tallinna Zenit | 22 | 10 | 5 | 7 | 63 | 47 | +16 | 35 | |
| 5 | Tallinna Hell Hunt | 22 | 10 | 2 | 10 | 74 | 46 | +28 | 32 | |
| 6 | Rumori Calcio | 22 | 8 | 7 | 7 | 46 | 39 | +7 | 31 | |
| 7 | Saku Sporting | 22 | 9 | 2 | 11 | 55 | 47 | +8 | 29 | |
| 8 | Tallinna Štrommi | 22 | 8 | 3 | 11 | 29 | 83 | −54 | 27 | |
| 9 | Tallinna Dünamo | 22 | 8 | 3 | 11 | 37 | 50 | −13 | 27 | |
| 10 | Tallinna Eston Villa (Q) | 22 | 8 | 2 | 12 | 48 | 50 | −2 | 26 | Qualification to Relegation play-offs | 
| 11 | Nõmme Kalju III (R) | 22 | 4 | 6 | 12 | 28 | 54 | −26 | 18 | Relegation to IV Liiga | 
| 12 | Tallinna TransferWise (R) | 22 | 4 | 3 | 15 | 42 | 82 | −40 | 15 | 
Results table
Top scorers 
 
  | Most viewed matches 
 
 Least viewed matches 
 
  | 
| Number of clubs | 12 | 
|---|---|
| Current champions |  Tartu JK Welco II  (2017)  | 
| Website | III liiga | 
The following clubs are competing in III liiga South during the 2018 season.
League table
| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Promotion, qualification or relegation | 
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Põhja-Sakala (C, P) | 22 | 15 | 1 | 6 | 72 | 44 | +28 | 46 | Promotion to II Liiga | 
| 2 | Imavere (Q) | 22 | 14 | 1 | 7 | 54 | 44 | +10 | 43 | Qualification to Promotion play-offs | 
| 3 | Tarvastu | 22 | 13 | 3 | 6 | 73 | 38 | +35 | 42 | |
| 4 | Jõgeva Wolves | 22 | 12 | 3 | 7 | 73 | 58 | +15 | 39 | |
| 5 | Vastseliina | 22 | 12 | 3 | 7 | 66 | 58 | +8 | 39 | |
| 6 | Viljandi Tulevik III [a] | 22 | 12 | 2 | 8 | 73 | 45 | +28 | 38 | |
| 7 | Valga Warrior | 22 | 9 | 2 | 11 | 60 | 72 | −12 | 29 | |
| 8 | EMÜ | 22 | 7 | 4 | 11 | 44 | 77 | −33 | 25 | |
| 9 | Elva II | 22 | 7 | 3 | 12 | 40 | 37 | +3 | 24 | |
| 10 | Võru Helios II (Q) | 22 | 6 | 3 | 13 | 39 | 50 | −11 | 21 | Qualification to Relegation play-offs | 
| 11 | Tartu Helios (R) | 22 | 5 | 3 | 14 | 44 | 82 | −38 | 18 | Relegation to IV Liiga | 
| 12 | Põlva Lootos (R) | 22 | 6 | 0 | 16 | 39 | 72 | −33 | 18 | 
Results table
Top scorers 
 
  | Most viewed matches 
 
 Least viewed matches 
 
  | 
| Number of clubs | 12 | 
|---|---|
| Current champions |  Paide Linnameeskond III  (2017)  | 
| Website | III liiga | 
The following clubs are competing in III liiga East during the 2018 season.
League table
| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Promotion, qualification or relegation | 
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Viimsi II [a] (C, P) | 22 | 18 | 2 | 2 | 53 | 17 | +36 | 56 | Promotion to II Liiga | 
| 2 | Loo (Q) | 22 | 13 | 4 | 5 | 60 | 35 | +25 | 43 | Qualification to Promotion play-offs | 
| 3 | Lasnamäe Ajax II | 22 | 13 | 2 | 7 | 54 | 41 | +13 | 41 | |
| 4 | Koeru | 22 | 11 | 3 | 8 | 51 | 31 | +20 | 36 | |
| 5 | Augur | 22 | 10 | 1 | 11 | 43 | 39 | +4 | 31 | |
| 6 | Sillamäe | 22 | 9 | 3 | 10 | 42 | 49 | −7 | 30 | |
| 7 | FCI Tallinn II [a] | 22 | 8 | 4 | 10 | 28 | 39 | −11 | 28 | |
| 8 | Anija | 22 | 8 | 4 | 10 | 26 | 39 | −13 | 28 | |
| 9 | Järva-Jaani | 22 | 8 | 3 | 11 | 58 | 51 | +7 | 27 | |
| 10 | Kadrina (Q) | 22 | 7 | 4 | 11 | 30 | 43 | −13 | 25 | Qualification to Relegation play-offs | 
| 11 | Ambla Vallameeskond (R) | 22 | 7 | 1 | 14 | 37 | 48 | −11 | 22 | Relegation to IV Liiga | 
| 12 | Rakvere Tarvas II (R) | 22 | 3 | 3 | 16 | 17 | 67 | −50 | 12 | 
Results table
Top scorers 
 
  | Most viewed matches 
 
 Least viewed matches 
 
  | 
| Number of clubs | 12 | 
|---|---|
| Current champions |  Pärnu JK Poseidon  (2017)  | 
| Website | III liiga | 
The following clubs are competing in III liiga West during the 2018 season.
League table
| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Promotion, qualification or relegation | 
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Kose (C, P) | 22 | 18 | 4 | 0 | 97 | 22 | +75 | 58 | Promotion to II Liiga | 
| 2 | Põhja-Tallinna Volta II [a] (Q) | 22 | 15 | 2 | 5 | 85 | 38 | +47 | 47 | Qualification to Promotion play-offs | 
| 3 | Saue | 22 | 14 | 3 | 5 | 84 | 35 | +49 | 45 | |
| 4 | Haapsalu | 22 | 11 | 2 | 9 | 55 | 53 | +2 | 35 | |
| 5 | Hiiumaa | 22 | 9 | 7 | 6 | 52 | 38 | +14 | 34 | |
| 6 | Kohila Püsivus | 22 | 10 | 3 | 9 | 30 | 41 | −11 | 33 | |
| 7 | Rummu Dünamo | 22 | 10 | 2 | 10 | 51 | 45 | +6 | 32 | |
| 8 | Kernu Kadakas | 22 | 7 | 3 | 12 | 37 | 48 | −11 | 24 | |
| 9 | Keila II | 22 | 7 | 3 | 12 | 36 | 64 | −28 | 24 | |
| 10 | Pärnu Poseidon II [a] (Q) | 22 | 5 | 5 | 12 | 30 | 72 | −42 | 20 | Qualification to Relegation play-offs | 
| 11 | Lihula (R) | 22 | 4 | 4 | 14 | 37 | 70 | −33 | 16 | Relegation to IV Liiga | 
| 12 | Vändra Vaprus II (R) | 22 | 2 | 2 | 18 | 32 | 100 | −68 | 8 | 
Results table
Top scorers 
 
  | Most viewed matches 
 
 Least viewed matches 
 
  | 
League winner
| 21 October 2018Semi-Final | Viimsi JK II (III E 1st) | 2–1 | JK Retro (III N 1st) | Viimsi, Harjumaa | 
| 13:30 | 
  | Report | 
  | Stadium:  Viimsi KK staadion  Attendance: 27 Referee: Karl Koppel  | 
| 21 October 2018Semi-Final | FC Kose (III W 1st) | 1–3 | Põhja-Sakala (III S 1st) | Kose, Harjumaa | 
| 13:00 | 
  | Report | 
  | Stadium:  Oru Põhikooli staadion  Attendance: 37 Referee: Viljar Pennert  | 
| 27 October 2018Final | Viimsi JK II (III E 1st) | 0–2 | Põhja-Sakala (III S 1st) | Viimsi, Harjumaa | 
| 12.00 | Report | 
  | Stadium:  Viimsi KK staadion  Attendance: 36 Referee: Paul Kask  | 
Promotion Play-offs
| 20 October 2018Semi-final | Tallinna FC Zapoos (III N 2nd) | –:+ | JK Loo (III E 2nd) | Tallinn, Harjumaa | 
| 12.00 | Report | Stadium:  Kalevi Keskstaadioni kunstmuruväljak  Referee: Paul Kask  | 
| 25 October 2018Semi-final | JK Loo (III E 2nd) | +:– | Tallinna FC Zapoos (III N 2nd) | Loo, Harjumaa | 
| 19.00 | Report | Stadium: Loo kunstmuruväljak | 
| 4 November 2018Final | JK Loo (III E 2nd) | 2–3 | Tartu JK Tammeka III (II N/E 12th) | Loo, Harjumaa | 
| 14:00 | 
  | Report | 
  | Stadium:  Loo kunstmuruväljak  Attendance: 8 Referee: Martti Pukk  | 
| 11. November 2018Final | Tartu JK Tammeka III (II N/E 12th) | 3–0 | JK Loo (III E 2nd) | Tartu, Tartumaa | 
| 15:00 | 
  | Report | Stadium:  Tartu Sepa jalgpallikeskuse kunstmuruväljak  Attendance: 27 Referee: Viljar Pennert  | 
| 20 October 2018Semi-final | SK Imavere (III S 2nd) | –:+ | Põhja-Tallinna JK Volta II (III W 2nd) | Järva, Järvamaa | 
| 13.00 | Stadium: Imavere stadium | 
| 27 October 2018Semi-final | Põhja-Tallinna JK Volta II (III W 2nd) | +:– | SK Imavere (III S 2nd) | Tallinn, Harjumaa | 
| 18.00 | Report | Stadium: Sõle jalgpallihall | 
| 4 November 2018Final | Põhja-Tallinna JK Volta II (III W 2nd) | 3–1 | Tõrva JK (II S/W 12th) | Tallinn, Harjumaa | 
| 20:00 | 
  | Report | 
  | Stadium:  Sõle jalgpallihall  Attendance: 16 Referee: Kristjan-Eric Lääne  | 
| 11 November 2018Final | Tõrva JK (II S/W 12th) | 1–4 | Põhja-Tallinna JK Volta II (III W 2nd) | Karksi-Nuia, Viljandimaa | 
| 14:00 | 
  | Report | 
  | Stadium:  Karksi-Nuia Gümnaasiumi staadion  Attendance: 14 Referee: Andrus Õun  | 
Relegation Play-offs
| 21 October 2018Final | Maardu United II (IV N/E 4th) | 4–0 | Pärnu JK Poseidon II (III W 10th) | Maardu, Harjumaa | 
| 14:00 | 
  | Report | Stadium:  Maardu kunstmuruväljak  Attendance: 51 Referee: Aleksei Latõnin  | 
| 29 October 2018Final | Pärnu JK Poseidon II (III W 10th) | 2–5 | Maardu United II (IV N/E 4th) | Pärnu, Harjumaa | 
| 19:00 | 
  | Report | 
  | Stadium:  Pärnu kunstmurustaadion  Attendance: 18 Referee: Margus Leedo  | 
| 21 October 2018Final | Kristiine JK (IV N/W 4th) | 1–6 | Tallinna FC Eston Villa (III N 10th) | Tallinn, Harjumaa | 
| 15:30 | 
  | Report | 
  | Stadium:  Wismari staadion  Attendance: 16 Referee: Timo Teniste  | 
| 24 October 2018Final | Tallinna FC Eston Villa (III N 10th) | 7–2 | Kristiine JK (IV N/W 4th) | Tallinn, Harjumaa | 
| 20:30 | 
  | Report | 
  | Stadium:  Sõle jalgpallihall  Attendance: 18 Referee: Paul Kask  | 
| 21 October 2018Final | SK Kadrina (III E 10th) | +:- | FC Toompea (IV N/W 5th) | 
| 28 October 2018Final | FC Toompea (IV N/W 5th) | –:+ | SK Kadrina (III E 10th) | 
| 21 October 2018Final | Tartu JK Tammeka IV (IV S 3rd) | 0–1 | Võru FC Helios II (III S 10th) | Tartu, Tartumaa | 
| 15:00 | Report | 
  | Stadium:  Tartu Sepa jalgpallikeskuse kunstmuruväljak  Attendance: 34 Referee: Enar Nilp  | 
| 28 October 2018Final | Võru FC Helios II (III S 10th) | 4–0 | Tartu JK Tammeka IV (IV S 3rd) | Võru, Võrumaa | 
| 14:00 | 
  | Report | Stadium:  Võru Jalgpallikeskuse kunstmuruväljak  Attendance: 40 Referee: Marko Liiva  | 
"Kolmanda liiga võitjaks tuli Põhja-Sakala (Summary of the season)" (in Estonian). EJL. 29 October 2018.