155th is the ordinal form of the number 155. 155th or One hundred and fifty-fifth may also refer to:
A fraction, , equal to one of 155 equal parts
Geography 155th meridian east, a line of longitude 155th meridian west, a line of longitude 155th Street (disambiguation)
Military 155th Brigade (disambiguation) 155th Division (disambiguation) 155th Regiment (disambiguation)
See also
June 4, 155th day of the year in a standard year