The 2018 Tianjin Open was a women's professional tennis tournament played on hard courts.

It was the 5th edition of the tournament, and part of the 2018 WTA Tour.

It took place at the Tuanbo International Tennis Centre in Tianjin, China between 8 and 14 October 2018.

[1] 1 Qualifiers prize money is also the Round of 32 prize money * per team The following players received wildcards into the singles main draw: The following player received entry through a protected ranking: The following players received entry from the qualifying draw: The following pairs received wildcards into the doubles main draw: The following pair received entry as alternates: