The 2018 Kurume U.S.E Cup was a professional tennis tournament played on outdoor carpet courts. It was the fourteenth edition of the tournament and was part of the 2018 ITF Women's Circuit. It took place in Kurume, Japan, on 14–20 May 2018.

Country	Player	Rank1	Seed
GBR	Naomi Broady	127	1
AUS	Arina Rodionova	130	2
GBR	Katie Boulter	176	3
JPN	Junri Namigata	211	4
GBR	Katy Dunne	225	5
SRB	Ivana Jorović	226	6
JPN	Ayano Shimizu	238	7
USA	Jacqueline Cako	249	8

• ¹ Rankings as of 7 May 2018.

The following players received a wildcard into the singles main draw:

• Robu Kajitani
• Kanako Morisaki
• Suzuho Oshino

The following players received entry from the qualifying draw:

• Sakura Hondo
• Ari Matsumoto
• Abbie Myers
• Anastasia Nefedova

• Ayano Shimizu def. Abbie Myers, 6–3, 7–5

• Naomi Broady / Asia Muhammad def. Katy Dunne / Abigail Tere-Apisah, 6–2, 6–4

• Official website
• 2018 Kurume U.S.E Cup at ITFtennis.com