[mactayo]

application's name to design calendars

[Nivag]

Quark and InDesign

Or if you are after something simpler, try iPhoto - Apple - iLife - iPhoto - Print Products

Otherwise a few online printing shops can do them, such as Photobox

[KeriVit]

A real simple, inexpensive program if you want printable calendars...The Print Shop

you can save as pdf and bring to a professional printer if you like.

[shifuimam]

I think even MS Word has a calendar wizard that's not half bad...

Are you looking to make a photo calendar or just print out a simple calendar? I use timeanddate.com to create a very simple yearly calendar that provides me with info I need for work, like week numbers and federal holidays.