2018 Fed Cup
The 2018 Fed Cup was the 56th edition of the most important tournament between national teams in women's tennis. The 2018 Fed Cup was expected to feature some structural changes, including a 16-team World Group and the introduction of a Final Four event at a neutral, predetermined location. However, the ITF announced shortly before their annual meeting that they were tabling a vote on the changes for at least one year.
In one of the biggest shocks in the tournament history, Russia was demoted to the Zonal Groups for the first time in two decades, after consecutive losses to Slovakia and Latvia.
The final took place on 10–11 November and was won by the Czech Republic.
World Group play-offs
The four losing teams in the World Group first round ties and four winners of the World Group II ties will compete in the World Group play-offs for spots in the 2019 World Group.Seeds
| Venue | Surface | Home team | Score | Visiting team |
| Minsk, Belarus | Hard | ' | 3–2 | |
| Cluj-Napoca, Romania | Clay | ' | 3–1 | |
| Wollongong, Australia | Hard | ' | 4–1 | |
| Genoa, Italy | Clay | 0–4 | ' |
World Group II
Seeds
| Venue | Surface | Home team | Score | Visiting team |
| Bratislava, Slovakia | Hard | ' | 4–1 | |
| Canberra, Australia | Grass | ' | 3–2 | |
| Cluj-Napoca, Romania | Hard | ' | 3–1 | |
| Chieti, Italy | Clay | ' | 3–2 |
World Group II play-offs
The four losing teams in the World Group II ties and four winners of the zonal Groups I are scheduled to compete in the World Group II play-offs for spots in the 2019 World Group II.Seeds
| Venue | Surface | Home team | Score | Visiting team |
| Khanty-Mansiysk, Russia | Clay | 2–3 | ' | |
| Cartagena, Spain | Clay | ' | 3–1 | |
| Montreal, Canada | Hard | ' | 3–2 | |
| Miki, Japan | Hard | ' | 3–2 |
Americas Zone
Group I
Location: Club Internacional de Tenis, Asunción, ParaguayDates: 7–10 February
;Participating teams
;Pool A
- ''''
Play-offs
was promoted to the 2018 Fed Cup World Group II play-offs.' and ' were relegated to Americas Zone Group II in 2019.Group II
Venue 1: Club Deportivo La Asunción, Metepec, MexicoVenue 2: Centro Nacional de Tenis de la FET, Guayaquil, Ecuador
Dates: 20–23 June and 18–21 July
;Pool A (Metepec)
- '
;Pool A (Guayaquil)
- '
*
Play-offs
' and ' were promoted to Americas Zone Group I in 2019.Asia/Oceania Zone
Group I
Venue: R.K. Khanna Tennis Complex, New Delhi, IndiaDates: 7–10 February
;Participating teams
;Pool A'
;Pool B
- '
Play-offs
was promoted to the 2018 Fed Cup World Group II play-offs.' and ' were relegated to Asia/Oceania Zone Group II in 2019.Group II
Venue: Bahrain Polytechnic, Isa Town, BahrainDates: 6–10 February
;Participating teams
;Pool A
;Pool CPacific Oceania
;Pool B
;Pool D
*
Play-offs
and Pacific Oceania were promoted to Asia/Oceania Zone Group I in 2019.Europe/Africa Zone
Group I
Venue: Tallink Tennis Centre, Tallinn, EstoniaDates: 7–10 February
;Participating teams
;Pool A
;Pool C
;Pool B' '
;Pool D
- '
Play-offs
' and ' were promoted to the 2018 Fed Cup World Group II play-offs.' and ' were relegated to Europe/Africa Zone Group II in 2019.Group II
Venue: Tatoi Club, Athens, GreeceDates: 18–21 April
;Participating teams
;Pool A'
- '
- ''''
Play-offs
' and ' were promoted to Europe/Africa Zone Group I in 2019.' and ' were relegated to Europe/Africa Zone Group III in 2019.Group III
Venue 1: Cité Nationale Sportive, Tunis, TunisiaVenue 2: Ulcinj Bellevue, Ulcinj, Montenegro
Dates: 16–21 April
;Participating teams
;Pool A (Tunis)
;Pool A (Ulcinj)'
;Pool B (Tunis)
- '
;Pool B (Ulcinj)
*