The year 2003 was the 222nd year of the Rattanakosin Kingdom of Thailand . It was the 58th year in the reign of King Bhumibol Adulyadej (Rama IX), and is reckoned as year 2546 in the Buddhist Era . The war on drugs of Thaksin Shinawatra's government was launched this year, resulting in almost 3,000 deaths.

← 2002 2001 2000 2003 in Thailand → 2004 2005 2006
Decades:	1980s 1990s 2000s 2010s 2020s
See also:	Other events of 2003 Timeline of Thai history