The 2007–08 National Division One was the 21st full season of rugby union within the second tier of the English league system, currently known as the RFU Championship.

New teams included Northampton Saints (relegated from the Guinness Premiership 2006–07) and Esher and Launceston (both promoted from National Division Two 2006–07).

[1][2][3] After two seasons Rotherham dropped the 'Earth' from their name to return to 'Rotherham Titans' (which they had been rebranded to in 2005 for the 2005–06 season) as sponsor Earth Mortgages ran into financial difficulties and Complete Technical Services instead became the club's new sponsor.

[5][6] Exeter Chiefs finished in second place, and Pertemp Bees and Launceston were relegated to the 2008–09 National Division Two.

[7][8][9] [24] [25] [26] 96 - 3 Northampton Saints at home to Sedgley Park on 26 January 2008 59 - 8 Northampton Saints away to Sedgley Park on 6 October 2007 96 - 3 Northampton Saints at home to Sedgley Park on 26 January 2008 Northampton Saints at home to Sedgley Park on 26 January 2008 Northampton Saints at home to Sedgley Park on 26 January 2008 Cornish Pirates at home to Exeter Chiefs on 7 October 2007 Exeter Chiefs away to Plymouth Albion on 8 September 2007 [27][28][29][30] Bruce Reihana for Northampton Saints at home to Sedgley Park on 26 January 2008 Chris Ashton for Northampton Saints at home to Launceston on 26 April 2008 Bruce Reihana for Northampton Saints at home to Sedgley Park on 26 January 2008 Gareth Steenson for Cornish Pirates at home to Exeter Chiefs on 7 October 2007 Danny Gray for Exeter Chiefs away to Plymouth Albion on 8 September 2007 [31][32][33][34][35] Northampton Saints at home to Exeter Chiefs on 22 March 2008 Pertemps Bees (twice) at home to Plymouth Albion on 15 September 2007 & Esher on 10 November 2007 Northampton Saints Sedgley Park [36]