|Date of birth||20 March 1966|
|Place of birth||Liverpool, England|
|Height||1.86 m (6 ft 1 in)|
|Playing position||Defender / Striker|
|* Senior club appearances and goals counted for the domestic league only.
Marshall made his name playing as a defender and striker for Oldham Athletic but started his career as an apprentice with hometown club Everton. After four years he signed for Oldham for £200,000 and scored nearly 50 goals in almost 200 appearances before joining Ipswich Town in 1993 for £750,000.
At Portman Road he scored 38 times in just over 90 appearances, including five times in his first five games, a feat that has not been repeated since in the Premier League, before being sold to Leicester City for £800,000 in 1996. He played for the Foxes for four seasons, notching up 26 goals in 61 games. He left on a free transfer to Bolton. While at Leicester, Marshall was cup-tied for their victory in the 1997 Football League Cup Final but was part of the 2000 League Cup winning team, coming on as a substitute in the final. In April 1999 he also scored a memorable last minute winner against boyhood club Liverpool at Anfield.
After helping the Wanderers to the Premier League he went on loan to Blackpool before making the move to Bloomfield Road permanent in January 2002. He scored once for Blackpool, in a 2-1 defeat to Huddersfield Town in February 2002. He captained the side for their victory in the final of the LDV Vans Trophy at the Millennium Stadium on 12 March 2002. "I was carrying an injury and wasn't 100% fit, but I had decided to call it a day and I wanted to finish on a high, which I did. It was a great day, and night come to think of it, and it will be one I will never forget."
- Leicester City
- League Cup: 1999-00
- League Trophy: 2001-02
- Oldham Athletic
- Football League Division Two: 1990-91
- Bolton Wanderers
- Football League Division One (Play Off Winners): 2000-01
- "Coyle happy to take a loan". Bolton News. Newsquest Media. 2011-03-04. Retrieved 2011-03-04.
- "Former Player: Ian Marshall". lcfc.com. 2 March 2016. Retrieved 7 February 2017.
- "Marshall punishes Liverpool". Independent. 22 April 1999. Retrieved 10 January 2014.
- "Blackpool 1-2 Huddersfield". BBC. 23 February 2002. Retrieved 17 January 2010.
- Gillatt, Peter (30 November 2009). Blackpool FC on This Day: History, Facts and Figures from Every Day of the Year. Pitch Publishing Ltd. ISBN 1-905411-50-2.
- Marshall returns Sincalir, John. BBC Leciester. 15-02-07. Accessed 12-10-11
- Ian Marshall Soccer. Accessed 12-10-11