England international Lampard's first-half substitution proved a spark for Chelsea as they beat Swansea City 2-0 on Sunday afternoon.
The midfielder scored a penalty after coming on to move a step closer to becoming his club's all-time top scorer and he is now just one short of Tambling's record of 202 goals.
Tambling was a guest of honour at Stamford Bridge on Sunday and Lampard told Sky Sports after the match: "He is a gentleman.
"I saw him before the game and I saw him afterwards. You would not meet a nicer guy in football.
"He has been in some bad health recently but it is great to see him come across for the game and I am very proud to be up and mentioned alongside a name like his in football terms but also as a bloke."
Lampard also says he has the full backing of Tambling as he approaches the record goalscoring total.
The former West Ham United star said: "He has been supportive since I got in the 100s, let alone the 200-mark."