| Class: | Group 3 |
| Horse Race: | Leopardstown 1,000 Guineas Trial Stakes |
| Location: | Leopardstown County Dublin, Ireland |
| Race Type: | Flat / Thoroughbred |
| Sponsor: | Ballylinch Stud |
| Website: | Leopardstown |
| Distance: | 7f (1,408 metres) |
| Surface: | Turf |
| Track: | Left-handed |
| Qualification: | Three-year-old fillies |
| Weight: | 9 st 2 lb Penalties 3 lb for G1 / G2 winners |
| Purse: | €55,000 (2021) 1st: €32,450 |
|}The Leopardstown 1,000 Guineas Trial Stakes is a Group 3 flat horse race in Ireland open to three-year-old thoroughbred fillies. It is run over a distance of 7 furlongs (1,408 metres) at Leopardstown in March or April.
The event used to be staged at Phoenix Park under the title 1,000 Guineas Trial. For a period it held Group 3 status. It was downgraded to Listed level in 1987.
The 1,000 Guineas Trial was transferred to Leopardstown in 1991. It regained Group 3 status in 2005.
The race can serve as a trial for various fillies' Classics in Europe. The last participant to win the Irish 1,000 Guineas was the 2022 winner, Homeless Songs. The last to achieve victory in the 1000 Guineas was Winter in 2017.
Leading jockey since 1986 (6 wins):
Leading trainer since 1986 (12 wins):
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| Year | Winner | Jockey | Trainer | Time | |||
|---|---|---|---|---|---|---|---|
| 1986 | width=160px | The Bean Sidhe | width=170px | Charlie Swan | width=180px | John Hayden | |
| 1987 | Claxton's Slew | Michael Kinane | Dermot Weld | 1:27.50 | |||
| 1988 | Bell Tower | Declan Gillespie | Michael Grassick | 1:31.10 | |||
| 1989 | Tursanah | David Parnell | Kevin Prendergast | 1:31.30 | |||
| 1990 | Welsh Muffin | Michael Kinane | Dermot Weld | 1:38.90 | |||
| 1991 | Kooyonga | Warren O'Connor | Michael Kauntze | 1:30.70 | |||
| 1992 | Gdansk's Honour | Christy Roche | Jim Bolger | 1:32.50 | |||
| 1993 | Miami Sands | Richard Hughes | John Oxx | 1:34.10 | |||
| 1994 | Kotama | Johnny Murtagh | John Oxx | 1:32.40 | |||
| 1995 | Khaytada | Johnny Murtagh | John Oxx | 1:32.20 | |||
| 1996 | Sheraka | Johnny Murtagh | John Oxx | 1:33.30 | |||
| 1997 | Classic Park | Stephen Craine | Aidan O'Brien | 1:27.20 | |||
| 1998 | Idle Rich | Michael Kinane | Dermot Weld | 1:38.40 | |||
| 1999 | Show Me the Money | Richard Hughes | Noel Meade | 1:26.60 | |||
| 2000 | Amethyst | Michael Kinane | Aidan O'Brien | 1:36.90 | |||
| 2001 | Rebelline | Declan McDonogh | Kevin Prendergast | 1:37.20 | |||
| 2002 | Lahinch | Michael Kinane | Aidan O'Brien | 1:29.60 | |||
| 2003 | Dimitrova | Pat Smullen | Dermot Weld | 1:28.00 | |||
| 2004 | Royal Tigress | Jamie Spencer | Aidan O'Brien | 1:39.20 | |||
| 2005 | Virginia Waters | Kieren Fallon | Aidan O'Brien | 1:36.30 | |||
| 2006 | Kamarinskaya | Seamie Heffernan | Aidan O'Brien | 1:32.10 | |||
| 2007 | Arch Swing | Michael Kinane | John Oxx | 1:29.30 | |||
| 2008 | Sunset | Pat Smullen | Dermot Weld | 1:28.94 | |||
| 2009 | Maoineach | Kevin Manning | Jim Bolger | 1:27.96 | |||
| 2010 | Lady Springbank | Jim Crowley | Paul Deegan | 1:33.91 | |||
| 2011 | Empowering | Joseph O'Brien | Aidan O'Brien | 1:29.09 | |||
| 2012 | Homecoming Queen | Colm O'Donoghue | Aidan O'Brien | 1:30.98 | |||
| 2013 | Rawaaq | Pat Smullen | Dermot Weld | 1:36.84 | |||
| 2014 | Bracelet | Joseph O'Brien | Aidan O'Brien | 1:33.70 | |||
| 2015 | Stormfly | Dermot Weld | 1:38.37 | ||||
| 2016 | Jet Setting | Shane Foley | Adrian Paul Keatley | 1:34.79 | |||
| 2017 | Hydrangea | Padraig Beggy | Aidan O'Brien | 1:28.43 | |||
| 2018 | Who's Steph | Colin Keane | Ger Lyons | 1:39.01 | |||
| 2019 | Lady Kaya | Robbie Colgan | Sheila Lavery | 1:31.14 | |||
| 2020 | Love Locket | Seamie Heffernan | Aidan O'Brien | 1:29.16 | |||
| 2021 | Keeper of Time | Ronan Whelan | John Feane | 1:28.29 | |||
| 2022 | Homeless Songs | Chris Hayes | Dermot Weld | 1:28.96 | |||
| 2023 | Never Ending Story | Ryan Moore | Aidan O'Brien | 1:37.43 | |||
| 2024 | A Lilac Rolla | Billy Lee | Paddy Twomey | 1:40.89 |
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