What is age for "Senior" discount in Spain?

Ticketmaster says 65.

At the Prado, it's 65. For the Renfe dorado card the age is 60. By the way, are you planning to get that? It will save you money on tickets you buy once you are there - if you will be doing that. It costs about €5, you must buy it in person, but can use it immediately.

The Sagrada website says "pensioners." One of the most knowledgeable people on the Trip Advisor forum for Spain writes Anyone over 65 is considered as an old age pensioner.

65 I think is the most often used definition, except for Renfe which is 60. You will need your passport to establish the age. Also, if you are disabled you may get a discount as well. You will need to ask for either...

Spain is the only European country we have traveled in as seniors that give these discounts to US seniors. Elsewhere they are limited to EU residents. The magic number was 65 and it is a deep discount.

In response to Janettravels, actually, I purchased train tickets in Brussels last week and the ticket seller asked if I was 65. I was surprised as I thought it might be EU residents only for a senior discount. I don't know how much the discount was as I'm a few months shy of the magic number.

Yes some train tickets especially for specified times (they tend to black out prime times) will allow senior discounts for Americans. What I meant was things like museums. Italy is particularly strict on this sort of thing and generally there are no breaks in France although I have gotten them at private museums. In Spain, there was just never any question wherever senior rates were available.

Rick's Spain book intro mentions discounts for seniors "loosely defined as retirees or those willing to call themselves seniors." Since the Sagrada Familia online shopping cart is no more specific, I say, "go for it."