Yes, that is why it was so named.
Amateurs were issued harmonically related frequencies 160 80 40 20 and 10,
along with the enigmatic 15, as experimental frequencies.  15 crept in as a
bonus, being a harmonic of 7.
This was before the commercial use of shortwave was contemplated.

73

David W Wood 

-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Ed Malmgren
Sent: Monday, July 13, 2015 11:37 PM
To: [log in to unmask]
Subject: Top band

Dave, I have wondered that same thing as to why they call it the top band. 
Perhaps when radio first started it was all ham radio and was in the 
broadcast area of frequency so 160 would be above that.  or maybe it is 
because it has the biggest number, 160.  73

ED K7UC