CAIRO, Jan 19 (Reuters) - Average yields on Egyptian six-month and one-year Treasury bills rose at an auction on Thursday, central bank data showed.

The yield on 182-day Treasury bills rose to 20.109 percent from 20.060 percent at the previous auction. The yield on 364-day bills rose to 20.187 percent from 20.109 percent last week at the most recent previous auction of similar tenor bonds.

(Reporting by Eric Knecht; Editing by Louise Ireland) ((eric.knecht@thomsonreuters.com; +20 2 2394 8102; Reuters Messaging: eric.knecht.thomsonreuters.com@reuters.net))