2018 Zhuhai Open

{{Infobox tennis event|2018|Zhuhai Open|

| date=5–11 March

| edition=3rd (ATP)
4th (ITF)

| category = ATP Challenger Tour
ITF Women's Circuit

| surface=Hard

| location=Zhuhai, China

| venue = Hengqin International Tennis Center

| prize_money=$75,000+H (ATP)
$60,000 (ITF)

| champms = {{flagicon|AUS}} Alex Bolt

| champws = {{flagicon|BEL}} Maryna Zanevska

| champmd = {{flagicon|UKR}} Denys Molchanov / {{flagicon|SVK}} Igor Zelenay

| champwd = {{flagicon|RUS}} Anna Blinkova / {{flagicon|NED}} Lesley Kerkhove

}}

The 2018 Zhuhai Open was a professional tennis tournament played on hard courts. It was the third (ATP) and fourth (ITF) editions of the tournament and part of the 2018 ATP Challenger Tour and the 2018 ITF Women's Circuit. It took place at the Hengqin International Tennis Center in Zhuhai, China between 5 and 11 March 2018.

Men's singles main-draw entrants

=Seeds=

class="sortable wikitable"
width="70"\| Country ! width="175"\| Player ! Rank¹ ! Seed
{{flag\|AUS}} \|Jordan Thompson \|92 \|1
{{flag\|TUN}} \|Malek Jaziri \|117 \|2
{{flag\|ESP}} \|Marcel Granollers \|122 \|3
{{flag\|GER}} \|Oscar Otte \|134 \|4
{{flag\|GER}} \|Yannick Maden \|138 \|5
{{flag\|BLR}} \|Ilya Ivashka \|147 \|6
{{flag\|EST}} \|Jürgen Zopp \|148 \|7
{{flag\|RUS}} \|Alexey Vatutin \|152 \|8

class="sortable wikitable"

width="70"| Country

! width="175"| Player

! Rank¹

! Seed

|92

|117

|122

|134

|138

|147

|148

|152

¹ Rankings are as of 26 February 2018.

=Other entrants=

The following players received wildcards into the singles main draw:

{{flagicon|CHN}} Li Zhe
{{flagicon|CHN}} Wu Di
{{flagicon|CHN}} Zhang Ze
{{flagicon|CHN}} Zhang Zhizhen

The following players received entry from the qualifying draw:

{{flagicon|AUS}} Maverick Banes
{{flagicon|AUS}} Alex Bolt
{{flagicon|JPN}} Yusuke Takahashi
{{flagicon|CHN}} Xia Zihao

Women's singles main-draw entrants

=Seeds=

class="sortable wikitable"
width="70"\| Country ! width="175"\| Player ! Rank¹ ! Seed
{{flag\|CZE}} \|Denisa Allertová \|88 \|1
{{flag\|JPN}} \|Nao Hibino \|90 \|2
{{flag\|THA}} \|Luksika Kumkhum \|98 \|3
{{flag\|SVK}} \|Viktória Kužmová \|109 \|4
~~{{flag\|CHN}}~~ \|~~Zheng Saisai~~ \|~~117~~ \|5
{{flag\|MNE}} \|Danka Kovinić \|121 \|6
{{flag\|JPN}} \|Miyu Kato \|127 \|7
{{flag\|SVK}} \|Anna Karolína Schmiedlová \|131 \|8

class="sortable wikitable"

width="70"| Country

! width="175"| Player

! Rank¹

! Seed

|88

|90

|98

|109

~~{{flag|CHN}}~~

|~~Zheng Saisai~~

|~~117~~

|Danka Kovinić

|121

|Miyu Kato

|127

|Anna Karolína Schmiedlová

|131

¹ Rankings are as of 26 February 2018.

=Other entrants=

The following players received wildcards into the singles main draw:

{{flagicon|CHN}} Gao Xinyu
{{flagicon|CHN}} Jiang Xinyu
{{flagicon|CHN}} Tang Qianhui
{{flagicon|CHN}} Yuan Yue

The following players received entry from the qualifying draw:

{{flagicon|CHN}} Gai Ao
{{flagicon|ITA}} Jessica Pieri
{{flagicon|POL}} Urszula Radwańska
{{flagicon|CHN}} Xun Fangying

The following player received entry as a lucky loser:

{{flagicon|CHN}} Feng Shuo

Champions

=Men's singles=

{{flagicon|AUS}} Alex Bolt def. {{flagicon|POL}} Hubert Hurkacz, 5–7, 7–6^(7–4), 6–2.

=Women's singles=

{{flagicon|BEL}} Maryna Zanevska def. {{flagicon|UKR}} Marta Kostyuk, 6–2, 6–4

=Men's doubles=

{{flagicon|UKR}} Denys Molchanov / {{flagicon|SVK}} Igor Zelenay def. {{flagicon|BLR}} Aliaksandr Bury / {{flagicon|TPE}} Peng Hsien-yin, 7–5, 7–6^(7–4).