What are they called?

[koiman]

Any idea what a person who collects caledars is called ?

[Quizmonster]

Most names for collectors of things are made up from the appropriate Greek root word plus the other Greek word 'phile', meaning 'lover of'. On that basis, a calendar-collector might be called a 'kylindrophile'. Our very word, 'calendar' comes from the Greek word for a roller...ie 'kylindros'.

[jno]

<coughs politely while disagreeing with QM> the usual ending is -ist: numismatist, philatelist, lepidopterist, deltiologist (= postcards), presumably since collecting isn't quite the same as loving. So perhaps kylindrist or perhaps kylindrophilist (on the analogy of arctophilist = teddy bear collector).

But nothing like any of these shows up on Google at all.

[Quizmonster]

Well, J, collectors of teddy bears - according to many lists - are called arctophiles and collectors of books, bibliophiles. Chambers Dictionary, indeed, defines 'arctophile' as (quote): "a lover or collector of teddy bears" and it applies precisely the same definition rule to 'bibliophile'. Collectors of stamps - philatelists - simply have the 'phile' element at the start!
Surely it requires some element of 'love' to be involved before anyone bothers actually to collect anything.
Whatever...I'm perfectly happy to be in the company of Chambers on this, as in most things!
I did say kylindrophile "might" be applied; I did not suggest it was a recognised defining word.

[jno]

no no QM, I'm all in favour of neologisms; the fact that a word doesn't show up on Google, even though you've just posted it on AB, should mean no more than that its moment has come. Kylindrophile sounds good to me. I wonder if there are any?

[noxlumos]

Calendar collector?