Kate Whoriskey will become artistic director of Seattle’s Intiman Theater in 2011, taking over for Bartlett Sher, who has been a.d. there since 2000.

Whoriskey, helmer of the recent Pulitzer-winner “Ruined,” will share leadership of the West Coast theater with Sher for the 2009-10 season before taking the reins on her own during the following season.

Sher’s contract with Intiman runs through 2010.

The regional position has become a high-profile legit gig in large part because Sher has, over the course of his tenure, significantly boosted the national presence of the theater, which picked up the regional Tony in 2006.

He also has gone on to become one of Broadway’s most prominent directors. Since 2005 he has been nommed for the directing Tony four times — for “The Light in the Piazza,” “Awake and Sing!,” “South Pacific” (for which he won) and “Joe Turner’s Come and Gone.” He is currently the resident director at Lincoln Center Theater, producer of all four of those shows.

Whoriskey has attracted national attention for her work with scribe Lynn Nottage on awards-magnet “Ruined” (currently playing an extended run at Manhattan Theater Club), which grew out of a trip to Uganda taken by the two creatives.

The helmer also has directed world preems of Nottage plays “Intimate Apparel,” at Center Stage and South Coast Rep in 2003, and “Fabulation,” at Playwrights Horizons in 2004.

Whoriskey has previously been an associate artist at the Intiman during the 2002-03 season. Her list of directing credits at the theater includes “The Chairs,” “The Lady From the Sea” and “Blue/Orange.”

Her future plans for the org include a fest of international work to complement the American cycle of productions programmed by Sher, as well as the establishment of a robust lit department to develop new work.

Whoriskey is based in Gotham with her husband, actor Daniel Breaker, currently appearing as Donkey in “Shrek the Musical,” and their child. Family will move to Seattle next year.