ANNEX I LIST OF THIRD COUNTRIES WHOSE NATIONALS ARE REQUIRED TO BE IN POSSESSION OF A VISA WHEN CROSSING THE EXTERNAL BORDERS OF THE MEMBER STATES
Quoted from the source.
Before you go
Passport validity
Your passport must be valid for at least 3 months.
The travel document which a third-country national is using to enter Croatia must be valid for at least another three months after the planned departure from Croatia and issued within the previous 10 years
Tourist entry only
These rules cover tourist visits. Work, study and transit follow other rules.
The other way round
What Croatia passport holders need to visit Qatar.
Croatia passport Qatar
Visa on arrival · 90 days
Maximum stay
Up to 90 days
Free On-arrival Tourist Visa for 90 Days Non-extendable for (43) Countries List of countries covered by this visa Antigua and Barbuda Argentina Armenia Austria Bahamas Belgium Brazil Bulgaria Croatia Cyprus Czech Denmark Dominican Republic Estonia Finland France Germany Greece Hungary Iceland Italy Latvia Liechtenstein Lithuania Luxembourg Malaysia Malta Netherlands Norway Poland Portugal Romania Russia Serbia Seychelles Slovakia Slovenia South Africa South Korea Spain Sweden Switzerland Turkey