The name of the Pittsburgh Pirates baseball stadium is PNC Park. What
does PNC stand for?

CoachJHill12 --

According to the website ballparksofbaseball.com, PNC Park is so named
because of PNC Bank buying the naming rights:
Ballparksofbaseball.com
"PNC Park" (undated)
http://www.ballparksofbaseball.com/nl/PNCPark.htm

PNC is a Pittsburgh-based financial services company with banking
being a key part of the company's activities:
PNC 
"Corporate Profile"
http://www.pnc.com/aboutus/corporate_profile.html

PNC was originally Pittsburgh National Corporation at its founding in
1852 and was the first national bank in the city:
http://www.pnc.com/aboutus/pnccorphistory.html

According to ESPN, PNC Bank pays $2 million per year for the naming
rights to this beautiful new stadium, which offers views of the river
and downtown Pittsburgh:
ESPN
"Stadium Naming Rights" (May 7, 2004)
http://espn.go.com/sportsbusiness/s/stadiumnames.html

Note that Ballparks.com says that the naming rights cost PNC $1.5 million per year:
Ballparks.com
"PNC Park," (August 2001)
http://www.ballparks.com/baseball/national/pitbpk.htm

Google search strategy:
Pirates + PNC + naming rights

Best regards,

Omnivorous-GA

Thanks and great, quick answer!