![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Seal_of_the_Executive_Office_of_the_President_of_the_United_States_2014.svg/langcy-640px-Seal_of_the_Executive_Office_of_the_President_of_the_United_States_2014.svg.png&w=640&q=50)
Swyddfa Weithredol Arlywydd yr Unol Daleithiau
From Wikipedia, the free encyclopedia
Mae Swyddfa Weithredol Arlywydd yr Unol Daleithiau (Saesneg: Executive Office of the President of the United States) yn cynnwys prif staff yr Arlywydd yr Unol Daleithiau cyfredol a nifer o lefelau o staff cynorthwyol. Arweinir y Swyddfa Weithredol gan Bennaeth Staff y Tŷ Gwyn.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Seal_of_the_Executive_Office_of_the_President_of_the_United_States_2014.svg/640px-Seal_of_the_Executive_Office_of_the_President_of_the_United_States_2014.svg.png)