Colin Gibson, 33, who lived in Ayr, was at the pub on November 29 with friends when the stricken police helicopter crashed through the roof, killing six people inside and the three onboard.
The UK Border Agency worker was celebrating a colleague's birthday at the Clutha.
Mr Gibson's family held hands as they
arrived for the service.
Among those in attendance were his mum, Anne Glasper, and her husband - Colin's stepfather - Eddie Glasper.
The Thornliebank Accordion Band played as mourners arrived.
The service was led by the Reverend Fiona Maxwell.
Mr Gibson's friends and family sang the hymn 'How Great Thou Art' before his partner, David Hay, read a
His sister, Diane Christensen, then read a piece describing her brother's life.
Mr Gibson, who worked at Glasgow Airport, was engaged to
Mr Hay and the couple lived together in Ayr.
A second hymn, Once In Royal David's
City, was sung before mourners set off for Woodside Crematorium in Paisley.