Q:

What is the name of the special parsha read on the shabbos before purim?

What is the parasha that we read on the shabbos before purim called?

A:

On the Shabas before Purim, we read the regular weekly parasha, which varies; next year (2017 Gregorian, 5777 Jewish) it will be T'tzave. Most weeks, after concluding the regular weekly parasha, we repeat the last part of it; this second time around is commonly called "maftir". Some special weeks, we read a section of the Torah relevant to that week as maftir instead of repeating the last part of the weekly parasha. The Shabas before Purim is one such week, when maftir is Deut. 25:17–19, "Zachor…".
"TL;DR" version: Whatever the regular weekly parasha is, with Deut. 25:17–19 instead of the usual maftir.

Source: Many years of looking at calendars and listening to Torah readings.

