The Trentham Stakes is a Group 3 weight-for-age race held for thoroughbred racehorses at Trentham Racecourse near Wellington, New Zealand conducted by the Wellington Racing Club.
Held over 2100 metres in January, it is seen as the main lead-up race to the Wellington Cup, which is run the following week.
The race was changed:
The 1989 race was named in the January 31 'Upper Hutt Leader' as the Mobil Wellington Stakes, and was won by the Melbourne Cup winning mare Empire Rose.
The scheduling of the races during the Wellington Cup carnival has changed over the years. The 2020 edition (stake of $70,000) was on the same date as the $225,000 Group 1 Levin Classic and the $70,000 Group 3 Anniversary Handicap. The 2026 edition ($150,000) shared the race card with the $200,000 Desert Gold Stakes and $500,000 Group 2 Thorndon Mile.
The 2021 Wellington Cup winner, Waisake, won the 2022 Trentham Stakes and was 3rd in the 2023 and 2024 editions.
The 1979 Wellington Cup winner, Big Gamble, won the 1981 Trentham Stakes.
In 1977 Show Gate won the Trentham Stakes and was second in the Wellington Cup behind Good Lord.