Lord Smith of Kelvin is one of Scotland's leading business figures and the Chancellor of the University of Strathclyde. He also chairs energy giant SSE, the Weir Group and the UK Green Investment Bank.
Chief executive David Grevemberg said: "On behalf of the whole team at Glasgow 2014, I'm thrilled to offer our warmest congratulations to our chairman Lord Smith on his appointment to The Most Ancient and Most Noble Order of the Thistle, the highest honour in Scotland.
"I can think of no one more fitting to receive this special honour which is only in the gift of Her Majesty the Queen. It is a great tribute to a great Glaswegian who continues to make an outstanding contribution to his home city and business and civic Scotland, as well as the delivery of an outstanding Commonwealth Games."
Lord Smith was knighted in 1999 for services to the National Museums of Scotland. He is a cross-bench independent peer in the upper house.