Patricia Elizabeth Wilka Materi de Battilana (born September 3, 1972 in Asunción) is a Paraguayan pistol shooter.

[1] At age thirty-five, Wilka made her official debut at the 2008 Summer Olympics in Beijing, where she competed in the women's 10 m air pistol shooting.

She finished in last place out of forty-four shooters in the qualifying rounds, after she was forced to retire in her third attempt, with a total score of 208 points.

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