Hector Emiliano Grillo (Spanish pronunciation: [ˈɡɾi.lo];[2] born 14 September 1992) is an Argentine professional golfer who plays on the PGA Tour.

[citation needed] Grillo turned professional in 2011 and earned playing status on the European Tour via Qualifying School.

Also in 2015, Grillo lost in a five-man playoff at the Puerto Rico Open on the PGA Tour, playing on a sponsor's exemption, and finished tenth at the Barbasol Championship.

[6] On 28 May 2023, Grillo snapped a nearly eight year winless drought by winning the Charles Schwab Challenge for his second PGA Tour victory.

He carried a two-shot lead to the 72nd hole but his tee shot ended up in a stream and took 5 minutes before it came to a stop.

After taking a penalty from where it entered the hazard, he made double bogey putting him into a playoff with Adam Schenk.