What does PNO stand for?

What does PNO mean?

PNO	PROFIBUS Nutzerorganisation, e. V. Business » Firms
PNO	Public Network Operator Business » Firms
PNO	PANACO, Inc. Business » AMEX Symbols
PNO	Pinotepa, Mexico Regional » Airport Codes
PNO	Performers Network Online Community » Media
PNO	Performers Network Online Internet
PNO	Pacific Northwest Orienteering Community » Sports
PNO	Peri- Natal Quality register Medical » Physiology
PNO	PharmaNet Group Ltd Business » ASX Symbols