Stephen Philip Lansdown (born 30 August 1952) is co-founder with Peter Hargreaves of UK financial services firm Hargreaves Lansdown, founder of Bristol Sport and majority shareholder of Bristol Rugby, Bristol Flyers, and Bristol City Football Club.
Educated at Thornbury Grammar School in Gloucestershire and trained as an accountant, Stephen Lansdown started Hargreaves Lansdown trading from a bedroom in 1981 and in 2009 was reportedly worth around £280 million.
In April 2009, he sold a stake of 4.7% in Hargreaves Lansdown for a sum of £47.2million, which he put towards the cost of building Bristol City's new football stadium. He was reported in September 2012 to have announced his intention to quit Hargreaves Lansdown in November 2012. Lansdown has a holiday home in the South of France.
The family recently moved to Guernsey.
According to Hargeaves Landsdown's notifiable director deals, on 7-10-2010 Stephen P Lansdown, Non-Executive Director, sold (at 429.00p) 13,560,843.00 shares at a value of £58,176,016.47.
In 2013, he also bought basketball club Bristol Flyers.
As of September 2015 his net worth was reported to be down to $1.88 billion,.
He is married with two children.