Star of the County Down
Gallant Poachers (aka van Diemen's Land)
Crooked Jack
All of above 3 have same tune.

Dainty Davie
Rantin' Rovin' Robin
The Gairdner wi' his Paidle
All Robert Burns and all same tune

Nicky Tams - can't think of the others off-hand but several others to same tune

Soor Milk Cairt - likewise

Mechanical Switch - same tune as the Hamish Imlach song above - more or less

Matt McGinn song - The little soldiers to tune of The red-haired boy mentioned above by PHJim.