| 2009–10 LV Cup | |
| Countries: | |
| Tournament Format: | Round-robin and knockout |
| Date: | November 2009 - March 2010 |
| Teams: | 16 |
| Matches: | 35 |
| Venue: | Sixways Stadium |
| Attendance2: | 12,024 |
| Champions: | Northampton Saints |
| Count: | 1 |
| Runner-Up: | Gloucester |
| Previous Year: | 2008–09 |
| Previous Tournament: | 2008–09 EDF Energy Cup |
| Next Year: | 2010–11 |
| Next Tournament: | 2010–11 LV Cup |
The 2009–10 LV Cup (styled as the LV= Cup) was the 39th season of England's national rugby union cup competition, and the fifth to follow the Anglo-Welsh format.
Northampton Saints were crowned champions after beating Gloucester in the final at Worcester's Sixways Stadium.
The structure of the competition was altered from previous years. The competition continued to consist of the four Welsh Celtic League teams and the twelve Guinness Premiership clubs, arranged into pools consisting of three English teams and one Welsh. However, the new format saw teams guaranteed two home and two away pool matches, with teams in Pools 1 and 4 playing each other and teams in Pools 2 and 3 playing each other.[1] The competition took place on international fixture dates during the Autumn Internationals and Six Nations, with the aim of allowing teams to develop their squad players.[2]
On 29 October 2009, little more than a week before the start of this season's competition, British insurer LV was unveiled as the new sponsor.[3]
The points scoring system for the pool stage was as follows:[4]
The ranking criteria were:
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The top teams from each pool qualify for the knockout stage. The pool winners were decided by the following criteria:
1. The pool winner will be the club with the highest number of match points in each pool. The pool winners will be ranked 1 to 4 by reference to the number of match points earned in the pools.
2. If two or more clubs in the same pool end the pool stage equal on match points, then the order in which they have finished will be determined by:
i. the greater number of matches won by the club and
ii. if the number of matches won is equal, the club with the greater total number of tries scored and
iii. if the total number of tries scored is equal, the club with the greater points difference (points scored for, less points scored against) and
iv. if the points difference is equal, the club with the fewer number of red cards and
v. if the number of red cards is the same, by the toss a coin.
Each of the four qualifying clubs shall be ranked as above and shall play each other as follows:
Semi-final 1 - 1st ranked club v 4th ranked club
Semi-final 2 - 2nd ranked club v 3rd ranked clubThe first club listed in each of the semi-final matches shall be the home club.
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| FB | 15 | Shane Geraghty | ||
| RW | 14 |  Bruce Reihana | ||
| OC | 13 | Jon Clarke | ||
| IC | 12 | James Downey | ||
| LW | 11 | Paul Diggin | ||
| FH | 10 | Stephen Myler | ||
| SH | 9 | Lee Dickson | ||
| N8 | 8 | Roger Wilson | ||
| OF | 7 | Neil Best | ||
| BF | 6 | Phil Dowson (c) | ||
| RL | 5 | Juandré Kruger | ||
| LL | 4 | Courtney Lawes | ||
| TP | 3 | Brian Mujati | ||
| HK | 2 | Brett Sharman | ||
| LP | 1 | Soane Tongaʻuiha | ||
| Replacements: | ||||
| HK | 16 | Andy Long | ||
| PR | 17 | Regardt Dreyer | ||
| PR | 18 | Jon Vickers | ||
| FL | 19 | Mark Hopley | ||
| N8 | 20 | Mark Easter | ||
| SH | 21 | Alan Dickens | ||
| FH | 22 | Barry Everitt | ||
| CE | 23 | Joe Ansbro | ||
| Coach: | ||||
| Jim Mallinder | ||||
| FB | 15 | Freddie Burns | ||
| RW | 14 | James Simpson-Daniel | ||
| OC | 13 | Tim Molenaar | ||
| IC | 12 | Eliota Fuimaono-Sapolu | ||
| LW | 11 | Lesley Vainikolo | ||
| FH | 10 | Nicky Robinson | ||
| SH | 9 | Rory Lawson | ||
| N8 | 8 | Adam Eustace | ||
| OF | 7 | Akapusi Qera | ||
| BF | 6 | Peter Buxton (c) | ||
| RL | 5 | Alex Brown | ||
| LL | 4 | Will James | ||
| TP | 3 |  Pierre Capdevielle | ||
| HK | 2 | Olivier Azam | ||
| LP | 1 | Nick Wood | ||
| Replacements: | ||||
| HK | 16 | Darren Dawidiuk | ||
| PR | 17 | Yann Thomas | ||
| PR | 18 | Rupert Harden | ||
| FL | 19 | Apolosi Satala | ||
| FL | 20 | Andy Hazell | ||
| SH | 21 | Dave Lewis | ||
| WG | 22 | Tom Voyce | ||
| WG | 23 | Charlie Sharples | ||
| Coach: | ||||
| Bryan Redpath | ||||