Alan Smith will replace Andy Gray as Martin Tyler's co-commentator for this year's footballing entry.
The duo will be joined by a second commentary team, Clive Tyldesley and Andy Townsend, who will call tournament matches for a more authentic real-world broadcast feel.
"Alan will bring a fresh, new perspective and insight to FIFA 12, working alongside the trusted and well-known voice of Martin Tyler," said senior producer David Rutter.
"As one of the top-tier broadcasters on the UK football scene, he brings enormous knowledge and expert analysis to the game so that we can deliver the most authentic FIFA experience this year."
Smith said: "The natural chemistry that Martin and I have developed working live matches for TV has transferred very well to the virtual broadcast booth.
"I'm really looking forward to FIFA fans hearing our work this fall as we bring all the match day emotion and excitement to this year's game."
Gray was dismissed by Sky Sports earlier this year following remarks over a female assistant referee.
FIFA 12 will add an all-new Player Impact engine, as well as a higher price point of £54.99.
FIFA 12 will be available on Xbox 360, PlayStation 3 and PC from September 27 in North America and September 30 worldwide.
> Read our preview of FIFA 12
Watch the Player Impact trailer for FIFA 12 below: