Athletics at the 2008 Summer Olympics – Men's decathlon

The men's decathlon at the 2008 Summer Olympics took place between August 21 and 22, at the Beijing National Stadium.

The qualifying standards were 8,000 points (A standard) and 7,700 points (B standard).

Schedule
All times are China standard time (UTC+8)

Records
Prior to this competition, the existing world and Olympic records were as follows:

Overall results
{{legend|#F2F5A9|The highest mark recorded in each event is highlighted in yellow. Since four men cleared 2.11 metres in the high jump, these marks were split between ten competitors with the gold medallist claiming four of them.|border=solid 1px #AAAAAA}}
 * Key: