2018 Open de Cagnes-sur-Mer

{{Infobox tennis event|2018|Open de Cagnes-sur-Mer|

| date = 7–13 May

| edition = 21st

| category = ITF Women's Circuit

| location = Cagnes-sur-Mer, France

| surface = Clay

| prize_money = $100,000

| champs = {{flagicon|SWE}} Rebecca Peterson

| champd = {{flagicon|USA}} Kaitlyn Christian / {{flagicon|USA}} Sabrina Santamaria

| before_name = Open de Cagnes-sur-Mer Alpes-Maritimes

}}

The 2018 Open de Cagnes-sur-Mer was a professional tennis tournament played on outdoor clay courts. It was the twenty-first edition of the tournament and was part of the 2018 ITF Women's Circuit. It took place in Cagnes-sur-Mer, France, on 7–13 May 2018.

Singles main draw entrants

= Seeds =

class="sortable wikitable"
width="70"| Country

! width="175"| Player

! Rank1

! Seed

{{flag|GER}}

|Carina Witthöft

|56

|1

{{flag|FRA}}

|Pauline Parmentier

|76

|2

{{flag|FRA}}

|Océane Dodin

|105

|3

{{flag|GER}}

|Andrea Petkovic

|106

|4

{{flag|SVK}}

|Viktória Kužmová

|108

|5

{{flag|NED}}

|Arantxa Rus

|109

|6

{{flag|CRO}}

|Jana Fett

|112

|7

{{flag|SWE}}

|Rebecca Peterson

|113

|8

  • 1 Rankings as of 30 April 2018.

= Other entrants =

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

The following players received entry from the qualifying draw:

The following players received entry as lucky losers:

Champions

=Singles=

{{main|2018 Open de Cagnes-sur-Mer – Singles}}

=Doubles=

{{main|2018 Open de Cagnes-sur-Mer – Doubles}}