January Weekly Events
Unless otherwise stated, these are generally observed in the US only.

Occasion  

Sponsor
Third Week
Healthy Weight Week  Healthy Weight Journal of America
International Printing Week  International Association of Printing House Craftsmen
Worldwide Kiwanis Week    Kiwanis International
Fourth Week
National Activity Professionals Week National Association of Activity Professionals
National Glaucoma Week    Prevent Blindness America
National Handwriting Analysis Week American Handwriting Analysis Foundation