General:
* Mon travail (most common, formal and informal) - This is the most direct translation and can be used in most situations.
* Mes travaux (plural, if referring to multiple projects or tasks)
Specific situations:
* Mes œuvres (if referring to artistic work, like paintings, sculptures, etc.)
* Mon ouvrage (if referring to a written work, like a book)
* Mon chantier (if referring to a construction project)
Example sentences:
* Je suis fier de mon travail. (I am proud of my work.)
* Mon travail est très important pour moi. (My work is very important to me.)
* J'ai beaucoup de travail à faire aujourd'hui. (I have a lot of work to do today.)
* J'ai terminé mon travail. (I have finished my work.)
The best choice for you will depend on the specific context of your sentence.