103rd is the ordinal form of the number 103. 103rd or One hundred and third may also refer to:

A fraction, , equal to one of 103 equal parts

Geography 103rd meridian east, a line of longitude 103rd meridian west, a line of longitude 103rd Street (disambiguation)

Military 103rd Brigade (disambiguation) 103rd Division (disambiguation) 103rd Regiment (disambiguation)

See also

April 13, 103rd day of the year in a standard year