I just got back all my grades for all my classes i got two, A- and two, A's and one B+. So my overall Gpa is above 9.5 but the problem is that i have one grade thats under A-. However, all together they are above 9.5 does that mean i get Deans honour list or not???

According to https://registrar.mcmaster.ca /serv...script-legend/, and my own experiences in undergrad, the fact that one grade was less than A- doesn't matter at all; it's the GPA that matters.

That said, I believe the assessment that determines Deans Honour List, etc., is made after the winter term, not the fall term.

So you'd have to maintain the 9.5 GPA at the end of this term (and, according to the link above, complete 30 units).