Athletes from the United Kingdom of Great Britain and Ireland competed at the 1906 Intercalated Games in Athens, Greece.

47 athletes, all men, competed in 42 events in 9 sports.

[1] Although Great Britain didn't send a team, eight British players (all from the same family) represented Smyrna from the Ottoman Empire, they lost their first match 0–5 against Denmark, but then won the silver medal match against one of the Greek sides after the original Greek side defaulted during the final.

The eight British silver medal winners were: The only British rower was Donald Whittall who competed for a mixed team in the coxed fours.