The 2018 Ladies Championship Gstaad was a women's tennis tournament played on outdoor clay courts. It was the 26th edition of the Ladies Championship Gstaad, and part of the International category of the 2018 WTA Tour. It took place at Roy Emerson Arena in Gstaad, Switzerland, from 16 July through 22 July 2018.
| Event | W | F | SF | QF | Round of 16 | Round of 32 | width=85 | Q | width=85 | Q2 | width=85 | Q1 |
| Singles | 280 | 180 | 110 | 60 | 30 | 1 | 18 | 12 | 1 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubles | 1 |
| width=130 bgcolor=ededed | Event | width=80 bgcolor=lime | W | width=85 bgcolor=thistle | F | width=85 bgcolor=ffff00 | SF | width=85 bgcolor=ffebcd | QF | width=85 bgcolor=afeeee | Round of 16 | width=85 bgcolor=afeeee | Round of 32 | width=85 | Q2 | width=85 | Q1 |
| style=background:#f5f5f5 | Singles | $43,000 | $21,400 | $11,500 | $6,175 | $3,400 | $2,100 | $1,020 | $600 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| style=background:#f5f5f5 | Doubles | $12,300 | $6,400 | $3,435 | $1,820 | $960 |
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 France | Alizé Cornet | 44 | 1 | |
 Sweden | Johanna Larsson | 58 | 2 | |
 Slovakia | Viktória Kužmová | 69 | 3 | |
| Carina Witthöft | 81 | 4 | ||
 Australia | Samantha Stosur | 86 | 5 | |
 Spain | Lara Arruabarrena | 88 | 6 | |
| Stefanie Vögele | 93 | 7 | ||
| Viktorija Golubic | 99 | 8 |
The following players received wildcards into the main draw:
The following players received entry using a protected ranking into the main draw:
The following players received entry from the qualifying draw:
Valentyna Ivakhnenko Veronika Kudermetova Sílvia Soler Espinosa
Martina Trevisan
Kathinka von Deichmann
Jennifer Brady → replaced by Antonia Lottner Danielle Collins → replaced by Tamara Korpatsch
Beatriz Haddad Maia → replaced by 
Tereza Martincová
Alison Van Uytvanck → replaced by Anna Kalinskaya| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| Xenia Knoll | Russian Federation | Veronika Kudermetova | 130 | 1 | ||
| United States | Kaitlyn Christian |  Mexico | Giuliana Olmos | 151 | 2 | |
 Canada | Eugenie Bouchard | Sweden | Johanna Larsson | 154 | 3 | |
| Bibiane Schoofs | Russian Federation | Yana Sizikova | 190 | 4 |
The following pairs received wildcards into the doubles main draw:
The following pair received entry as alternates:
See main article: 2018 Ladies Championship Gstaad – Singles.
Alizé Cornet defeated 
Mandy Minella, 6–4, 7–6(8–6)See main article: 2018 Ladies Championship Gstaad – Doubles.
Desirae Krawczyk defeated Lara Arruabarrena / Timea Bacsinszky, 4–6, 6–4, [10–6]
