The 2008 Miami Masters (also known as the Sony Ericsson Open for sponsorship reasons) was a tennis tournament played on outdoor hard courts. It was the 24th edition of the Miami Masters, and was part of the ATP Masters Series of the 2008 ATP Tour, and of the Tier I Series of the 2008 WTA Tour. Both the men's and the women's events took place at the Tennis Center at Crandon Park in Key Biscayne, Florida, United States, from March 26 through April 6, 2008.
The men's field was headlined by World No. 1 and Masters Cup champion Roger Federer, Chennai finalist Andy Roddick, and Australian Open champion, Indian Wells Masters winner and defending champion Novak Djokovic. Other top players in the field were 2007 Moscow titlist Nikolay Davydenko, Masters Cup runner-up David Ferrer, Andy Roddick, David Nalbandian and Richard Gasquet.
The women's field was led by World No. 1 and Tour Championships winner Justine Henin, Australian Open runner-up and Indian Wells champion Ana Ivanovic, and Indian Wells finalist Svetlana Kuznetsova. Among other players competing were Australian Open semifinalist and Indian Wells semifinalist Jelena Janković, Paris titlist Anna Chakvetadze, Venus Williams, Daniela Hantuchová and Serena Williams.
See main article: 2008 Sony Ericsson Open – Men's singles. 
Nikolay Davydenko defeated 
Rafael Nadal 6–4, 6–2
See main article: 2008 Sony Ericsson Open – Women's singles. 
Serena Williams defeated 
Jelena Janković 6–1, 5–7, 6–3
See main article: 2008 Sony Ericsson Open – Men's doubles. Bob Bryan / Mike Bryan defeated 
Mahesh Bhupathi / Mark Knowles 6–2, 6–2
See main article: 2008 Sony Ericsson Open – Women's doubles. Katarina Srebotnik / 
Ai Sugiyama defeated Cara Black / Liezel Huber 7–5, 4–6, [10–3]