1738

1738 (MDCCXXXVIII) was a common year starting on Wednesday of the Gregorian calendar and a common year starting on Sunday of the Julian calendar, the 1738th year of the Common Era (CE) and Anno Domini (AD) designations, the 738th year of the 2nd millennium, the 38th year of the 18th century, and the 9th year of the 1730s decade.

As of the start of 1738, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.