2007 WTA Tier I Series
| Details | |
|---|---|
| Duration | January 29 – October 21 |
| Edition | 18th |
| Tournaments | 10 |
| Achievements (singles) | |
| Most titles | Justine Henin Jelena Janković (2) |
| Most finals | Justine Henin Jelena Janković (3) |
← 2006 2008 → | |
The WTA Tier I tournaments are part of the elite tour for professional women's tennis organised by the WTA called the WTA Tour.