Gascoigne, 46, who has battled alcoholism for many years, was fined £600 for one charge of assault and £400 for a drunk and disorderly charge.
The former Newcastle United and Tottenham Hotspur midfielder was arrested after police were called to Stevenage station in Hertfordshire at around 10.30pm on July 4.
Security guard Jack Sherrington noticed that Gascoigne was staggering towards the railway tracks. Staff tried to help him by putting him in a wheelchair, but he became abusive to Mr Sherrington and used the “c-word” repeatedly, Elaine McMillan, prosecuting, told Stevenage Magistrates’ Court.
Ms McMillan said Gascoigne grabbed hold of Mr Sherrington in the neck area – an assault which lasted a few seconds.
The court heard that Gascoigne, of Gateshead, had been in Newcastle visiting his father, who has a heart condition. He was travelling from Newcastle to London but got off at Stevenage.
His lawyer, Gavin Harris, said he had only consumed a small amount of alcohol due to a “combination of stress caused by worry for his father and acute pain from a hip operation six weeks previously”.
In a statement outside court, Mr Harris said his client wanted to publicly apologise for his actions. “He now wishes to be left alone to carry on with his recovery.”