What is the title of address for a divorced Spanish woman?

In Spain, a divorced woman can be addressed as "Señora" followed by her last name, which retains her married name if she chooses to do so. Alternatively, if she has reverted to her maiden name, she can be addressed using "Señorita" with her maiden name, although this is less common for divorced women. It's important to consider her preference for how she wishes to be addressed.