2018 in Indonesia

Centuries:	19th; 20th; 21st; ; ;
Decades:	1990s; 2000s; 2010s; 2020s; ;
See also:	History of Indonesia; Timeline of Indonesian history; List of years in Indonesia;

2018 (MMXVIII) was a common year starting on Monday of the Gregorian calendar, the 2018th year of the Common Era (CE) and Anno Domini (AD) designations, the 18th year of the 3rd millennium and the 21st century, and the 9th year of the 2010s decade.

During that year, Indonesia held multiple international sporting events, including the 2018 Asian Games and the 2018 Asian Para Games. The Indonesian government designated 16 national holidays and 5 religious holidays in 2018.

Indonesia also suffered major incidents and major natural disasters throughout the year. A string of terrorist attacks occurred throughout Indonesia on May, with the most serious incident occurred in Surabaya from 13 to 14 May. In terms of natural disasters, the Indonesian National Board for Disaster Management (BNPB) recorded a total of 1,999 natural disasters throughout the year, with more than 4,000 deaths. Month of September saw the largest loss of life due to the 2018 Sulawesi earthquake and tsunami, the deadliest earthquake in Indonesia in more than a decade.

Multiple major transportation disasters also occurred on that year. The second deadliest aircraft disaster in Indonesia occurred in October when Lion Air Flight 610 crashed shortly after taking off from Tangerang. One of the deadliest ferry disaster in North Sumatra occurred on June when MV Sinar Bangun sank at Lake Toba. There were also at least two bus disasters that caused more than 20 deaths in 2018.