| Competition: | Liga I |
| Season: | 2009–10 |
| Winners: | CFR Cluj |
| Relegated: | Internațional Politehnica Iași Ceahlăul Piatra Neamț Unirea Alba Iulia |
| Continentalcup1: | Champions League |
| Continentalcup1 Qualifiers: | CFR Cluj Unirea Urziceni |
| Continentalcup2: | Europa League |
| Continentalcup2 Qualifiers: | Vaslui Steaua București Timișoara Dinamo București |
| League Topscorer: | Andrei Cristea (16) |
| Biggest Home Win: | Timișoara 6–0 Ceahlăul Timișoara 6–0 Unirea Brașov 6–0 Bistrița |
| Biggest Away Win: | Gaz Metan 2–6 Timișoara Ceahlăul 0–4 Dinamo Ceahlăul 0–4 Rapid |
| Highest Scoring: | Urziceni 4–4 Dinamo Gaz Metan 2–6 Timișoara |
| Matches: | 306 |
| Total Goals: | 711 |
| Longest Wins: | 6 matches Vaslui |
| Longest Unbeaten: | 16 matches Urziceni |
| Longest Winless: | 14 matches Iași |
| Longest Losses: | 7 matches Alba Iulia |
| Prevseason: | 2008–09 |
| Nextseason: | 2010–11 |
The 2009–10 Liga I was the ninety-second season of Liga I, the top-level football league of Romania. Unirea Urziceni were the defending champions.
Farul Constanța, Otopeni and Gloria Buzău were relegated at the end of the 2008–09 season. They were joined by Argeș Pitești, who were demoted upon a decision of the Professional Football League on 8 July 2009, after their owner, Cornel Penescu, was found guilty of corruption.[1] As a consequence, 15th-placed Gaz Metan Mediaș were spared relegation.
The four relegated teams were replaced by the champions and runners-up from both 2008–09 Liga II divisions. Ceahlăul Piatra Neamț and Ploiești were promoted from Seria I while Unirea Alba Iulia and Internațional Curtea de Argeș were promoted from Seria II.
Promoted team FC Ploiești were renamed FC Astra Ploiești, effective to 1 July 2009.[2]
| Timișoara | Steaua București | FC U Craiova | CFR Cluj | |
|---|---|---|---|---|
| Dan Păltinișanu | Steaua | Ion Oblemenco | Dr. Constantin Rădulescu | |
| Capacity: 32,972 | Capacity: 28,365 | Capacity: 25,252 | Capacity: 23,500 | |
| Ceahlăul Piatra Neamț | Dinamo București | Internațional Curtea de Argeș | Oțelul Galați | |
| Ceahlăul | Dinamo | Nicolae Dobrin | Oțelul | |
| Capacity: 17,500 | Capacity: 15,032 | Capacity: 15,000 | Capacity: 13,500 | |
| Rapid București | Politehnica Iași | |||
| Giulești-Valentin Stănescu | Emil Alexandrescu | |||
| Capacity: 11,704 | Capacity: 11,390 | |||
| FC Vaslui | Pandurii Târgu Jiu | |||
| Municipal | Tudor Vladimirescu | |||
| Capacity: 9,240 | Capacity: 9,200 | |||
| Astra Ploiești | FC Brașov | |||
| Astra | Silviu Ploeșteanu | |||
| Capacity: 9,000 | Capacity: 8,800 | |||
| Unirea Alba Iulia | Gloria Bistrița | Unirea Urziceni | Gaz Metan Mediaș | |
| Cetate | Gloria | Tineretului | Gaz Metan | |
| Capacity: 8,000 | Capacity: 7,800 | Capacity: 7,000 | Capacity: 5,300 | |
| Team | Head coach | Captain | Kit manufacturer | Shirt Sponsor | |
|---|---|---|---|---|---|
| Astra Ploiești |  | Gheorghe Rohat | Adidas | InterAgro | |
| Brașov | | Robert Ilyeș | Puma | Roman | |
| Ceahlăul Piatra Neamț |  |  Eugeniu Cebotaru | Lotto | Altex | |
| CFR Cluj |  | Cadú | Nike | Sigma Towers | |
| Dinamo București | | Marius Niculae | Nike | Orange | |
| FC U Craiova | | Andrei Prepeliță | Adidas | Ediție Specială | |
| Gaz Metan Mediaș | | Cristian Todea | Joma | RomGaz | |
| Gloria Bistrița | | Călin Albuț | Puma | Teraplast, Aldis, Darimex | |
| Internațional | | Mihai Pintilii | Adidas | Lazăr Company | |
| Oțelul Galați | | Gabriel Paraschiv | Masita | ArcelorMittal | |
| Pandurii Târgu Jiu | | Alin Chibulcutean | Umbro | USMO | |
| Politehnica Iași | | Cristian Brăneț | Nike | — | |
| Rapid București | | Costin Lazăr | Lotto | Unibet | |
| Steaua București | | Petre Marin | Nike | SportingBet | |
| Timișoara | | Dan Alexa | Lotto | Balkan Petroleum | |
| Unirea Alba Iulia |  | Răzvan Dâlbea | Lotto | Elit | |
| Unirea Urziceni |  | George Galamaz | Givova | GreenCity | |
| Vaslui | |  Wesley | Adidas | New Holland Agriculture |
| Team | Outgoing manager | Manner of departure | Date of vacancy | Replaced by | Date of appointment | |
|---|---|---|---|---|---|---|
| Brașov | Nicolò Napoli[3] | Sacked | July 27, 2009 | Viorel Moldovan | July 27, 2009 | |
| Astra Ploiești | Ion Moldovan[4] | Sacked | August 20, 2009 | Nicolò Napoli[5] | August 20, 2009 | |
| Steaua București | Cristiano Bergodi | Sacked | September 17, 2009 | Mihai Stoichiță | September 18, 2009 | |
| Ceahlăul Piatra Neamț | Mihai Ionescu | Florin Marin | ||||
| FC U Craiova | Daniel Mogoșanu | Sacked | September 21, 2009 | Eugen Neagoe | September 21, 2009 | |
| Vaslui | Cristian Dulca | Sacked | September 23, 2009 | Dorin Zotincă | ||
| Vaslui | Dorin Zotincă | Interim | Marius Lăcătuș | September 28, 2009 | ||
| Dinamo București | Dario Bonetti | Sacked | October 2, 2009 | Marin Ion | October 2, 2009 | |
| Gloria Bistrița | Sandu Tăbârcă | Resigned | October 18, 2009 | Florin Halagian | ||
| Gloria Bistrița | Florin Halagian | Interim | Marian Pană | October 20, 2009 | ||
| Dinamo București | Marin Ion[6] | Resigned | October 23, 2009 | Cornel Țălnar[7] | October 24, 2009 | |
| Pandurii Târgu Jiu | Sorin Cârțu | Liviu Ciobotariu | ||||
| Ceahlăul Piatra Neamț | Florin Marin | Gheorghe Mulțescu | ||||
| Rapid București | Viorel Hizo | Resigned | October 29, 2009 | Nicolae Manea | November 1, 2009 | |
| CFR Cluj | António Conceição | Sacked | November 16, 2009 | Andrea Mandorlini | November 18, 2009 | |
| FC U Craiova | Eugen Neagoe | Sacked | December 13, 2009 | Mark Wotte | January 3, 2010 | |
| Internațional Curtea de Argeș | Ștefan Stoica | Sacked | December 2009 | Ionuț Badea | December 2009 | |
| Unirea Urziceni | Dan Petrescu | Resigned | December 26, 2009 | Ronny Levy | December 2009 | |
| Gloria Bistrița | Marian Pană | Sacked | January, 2010 | Marius Șumudică | January 4, 2010 | |
| Ceahlăul Piatra Neamț | Gheorghe Mulțescu | Sacked | February 27, 2010 | Zoran Filipović | March 3, 2010 | |
| Unirea Alba Iulia | Adrian Falub | Sacked | March 8, 2010 | Blaž Slišković | March 11, 2010 | |
| Pandurii Târgu Jiu | Liviu Ciobotariu | Resigned | March 17, 2010 | Sorin Cârțu | March 17, 2010 | |
| Rapid București | Nicolae Manea | Resigned | April 1, 2010 | Ioan Andone | April 1, 2010 | |
| Politehnica Iasi | Petre Grigoraș | Resigned | April 15, 2010 | Dumitru Dumitriu | April 15, 2010 | |
| Astra Ploiești | Nicolò Napoli | Sacked | April 20, 2010 | Marin Barbu | April 20, 2010 | |
| FC U Craiova | Mark Wotte | Sacked | Florin Bejinaru | May 14, 2010 |
| Rank[8] [9] | Player | Club | Goals |
|---|---|---|---|
| 1 | Andrei Cristea | Dinamo București | 16 |
| 2 | Pantelis Kapetanos | Steaua București | 15 |
| 3 | Dorin Goga | Timișoara | 12 |
| Wesley | Vaslui | ||
| Marius Bilașco | Unirea Urziceni | ||
| 6 | Liviu Ganea | Astra Ploiești | 11 |
| 7 | Cristian Bud | CFR Cluj | 10 |
| Júnior Moraes | Gloria Bistrița | ||
| Alexandru Ioniță | Rapid București | ||
| 10 |  Lukáš Magera | Timișoara | 9 |
Source: RomanianSoccer