List of PSA women's number 1 ranked players

This article is a list of PSA women's number 1 ranked players in the Official Women's Squash World Ranking.

The Official Women's Squash World Ranking are the Professional Squash Association's (PSA) merit-based method for determining the world rankings in women's squash.

The WISPA, the WSA and the PSA has used a computerized system for determining the rankings since April 1984.

An updated rankings list is released each Monday.

Accumulated totals are bolded on each player's final streak.

Nicol David has spent a total of 112 months and 109 consecutive months at the top of the women's world rankings , the most of any player.