| 2012 Paldo Pro Baseball | |
| League: | Korea Professional Baseball |
| Sport: | Baseball |
| Duration: | April 2012 – November 2012 |
| No Of Teams: | 8 |
| No Of Games: | 133 per team |
| Season: | Regular Season |
| Season Champs: | Samsung Lions |
| Mvp: | Park Byung-ho (Nexen) |
| Mvp Link: | KBO League Most Valuable Player Award |
| Playoffs: | Post Season |
| Conf1: | Semi-Playoff |
| Conf1 Champ: | Lotte Giants |
| Conf1 Runner-Up: | Doosan Bears |
| Conf2: | Playoff |
| Conf2 Champ: | SK Wyverns |
| Conf2 Runner-Up: | Lotte Giants |
| Finals: | Korean Series |
| Finals Link: | 2012 Korean Series |
| Finals Champ: | Samsung Lions |
| Finals Runner-Up: | SK Wyverns |
| Finals Mvp: | Lee Seung-yuop (Samsung) |
| Finals Mvp Link: | Korean Series Most Valuable Player Award |
| Seasonslist: | List of KBO League seasons |
| Seasonslistnames: | KBO |
| Prevseason Link: | 2011 Korea Professional Baseball season |
| Prevseason Year: | 2011 |
| Nextseason Link: | 2013 Korea Professional Baseball season |
| Nextseason Year: | 2013 |
The Korea Professional Baseball season was the 31st season in the history of the Korea Professional Baseball. The Samsung Lions won the regular season and Korean series.
On 21 July, the best players participate in the Korean All-Star Game. The franchises participating are divided into two regions: Eastern League (Samsung Lions, Doosan Bears, Lotte Giants, SK Wyverns) and Western League (Kia Tigers, Hanwha Eagles, LG Twins, Nexen Heroes). The titles 'Eastern' and 'Western' do not directly correspond to the geographical regions of the franchises involved, as both SK and Doosan, being from Incheon and Seoul respectively, are clearly based in the Western region of Korea, despite representing the East. Unlike in the MLB, the Korean All-Star Game does not determine home-field advantage in the Korean Series. The most recent Korean All-Star Game was played in Seoul. 2012 Korean All-Star Game won 5-2 by the Eastern League.
Korea Professional Baseball season culminates in its championship series, known as the Korean Series. Currently, the top four teams qualify for the postseason based on win–loss records. The team with the best record gains a direct entry into the Korean Series, while the other three teams compete for the remaining place in a step-ladder playoff system:
Any playoff games are no draw playing until the end, so originally scheduled 5 or 7 games.
| Rank | Team | GP | W | D | L | Pct. | Postseason |
| 1 | 133 | 80 | 2 | 51 | 0.611 | 2012 Korean Series Champion | |
| 2 | 133 | 71 | 3 | 59 | 0.546 | Playoff Winner, 2012 Korean Series Runner-up | |
| 3 | 133 | 68 | 3 | 62 | 0.523 | Semi-Playoff Loser | |
| 4 | 133 | 65 | 6 | 62 | 0.512 | Semi-Playoff Winner, Playoff Loser | |
| 5 | 133 | 62 | 6 | 65 | 0.488 | Did not qualify | |
| 6 | 133 | 61 | 3 | 69 | 0.469 | ||
| 7 | 133 | 57 | 4 | 72 | 0.442 | ||
| 8 | 133 | 53 | 3 | 77 | 0.408 | ||
For the first time since 1997, there are no foreign hitters in the KBO, as all eight teams use their foreign player allotments on pitchers.