The incidents happened at The Last Post and Mill Street.
The first incident occurred at the pub in St Andrews at around 21:00. A man was punched and head butted a number of times in the public bar where he sustained head injuries that needed medical attention. Anyone with any information or who saw the incident take place is asked to contact PC 177 Le Galloudec.
Later on the same night, between 22:30 and 23:30 a separate incident took place on Mill Street near the Burnt Lane steps. A man was assaulted as he walked up the street and he was left with serious head injuries. Any witnesses to this incident are asked to contact DC 86 Smith.
Both can be contacted on 725111.