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 Bahrain.
Croatia passport Bahrain
Visa on arrival
1 Denmark 2 Australia 3 Austria 4 Belgium 5 Brunei 6 Andorra 7 Canada 8 Finland 9 France 10 Germany 11 Greece 12 Hong Kong, China 13 Iceland 14 Ireland 15 Italy 16 Japan 17 Lichtenstein 18 Luxemburg 19 Malaysia 20 Monaco 21 Netherlands 22 New Zealand 23 Norway 24 Portugal 25 San Marino 26 Singapore 27 Spain 28 Sweden 29 Switzerland 30 UK 31 US 32 Vatican City 33 Russia 34 South Korea 36 Kazakhstan 37 China 38 Thailand 39 Macao, China 40 Cyprus 41 Poland 42 Croatia 43 Czech Republic 44 Latvia 45 Lithuania 46 Hungary 47 Bulgaria 48 Malta 49 Romania 50 Slovakia 51 Slovenia 52 Estonia 53 Venezuela 54 Uruguay 55 Suriname 56 Peru 57 Paraguay 58 Guyana 59 French Guyana 60 Falkland Islands 61 Ecuador 62 Colombia 63 Chile 64 Brazil 65 Bolivia 66 Argentina 67 Mexico 68 Georgia 69 Ukraine