George Leon Argyros (born February 4, 1937) is an American former diplomat who served as the United States Ambassador to Spain.

He originally started his business career running a grocery store and moved on to buying and selling real estate to gas stations.

Argyros has a net worth around $2 billion and owns around 5,500 apartments in Orange County and nearly 2 million square feet of commercial real estate in Southern California.

He resigned from that position in 1990, when President Bush appointed him to the board of the Federal Home Loan Mortgage Corporation (FreddieMac).

A trade of pitcher Mark Langston had him described by one press reporter as the "miserly, mean-spirited owner of the Seattle Mariners".

In 1986, now with a new tone of saying that patience is for winners, Argyros managed to come to an end of a two-year standoff with the Seattle community over the lease agreement for the Kingdome.

It led to an addition of an escape clause that would let the Mariners try to break the lease if they do not average 1.4 million in attendance in the next two years or annually sell 10,000 season tickets (they had sold 3,950 in 1985).

[1] Argyros also donated money towards the construction of the Performing Arts Center, named after him, at the American School of Madrid.