List of Oceanian countries by GDP

Source International Monetary Fund World Economic Outlook (April - 2026)
Date23 Nov 2025

Australia is the largest economy in Oceania, followed by New Zealand and Papua New Guinea. These three together hold a huge 99.4% share of the Oceanian economy. Tuvalu has the smallest economy in Oceania.

One economy of Oceania would have a GDP above $1 trillion, and two would have an economy above $100 billion. None of the Oceanian economies are in the top ten largest economies globally, and only one is within the top 50 world GDP rankings.

The nominal GDP of all 14 economies would increase in 2025 compared to 2024. Australia ($34 bn) is the top contributor.

In PPP data, one economy in Oceania would have a GDP above Int. $1 trillion, and two would have an economy above Int. $100 billion. Only one Oceanian economy, Australia, is in the top 50 world GDP rankings.

None of the Oceanian economies would see a decrease in 2025 compared to 2024. Australia (Int. $81 bn) and New Zealand (Int. $9.45 bn) would be the top gainers.

Nine economies have higher GDP on a PPP basis, and five have higher on a nominal basis. Fiji has the highest PPP to nominal ratio of 2.40, while Nauru has the lowest figure of 0.86.

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GDP (Nominal)

Code Country/Economy GDP (billions of $) Share (%) Rank
20252026ChangeOceaniaWorld OceaniaWorld
AUSAustralia1,839.9612,123.963284.00286.71.68112
FJIFiji, Republic of6.0416.3520.3110.2590.005034160
KIRKiribati0.3490.4010.0520.01640.0003210191
MHLMarshall Islands, Republic of the0.3080.3420.0340.01400.0002712193
FSMMicronesia, Federated States of0.5020.5210.0190.02130.000419190
NRUNauru, Republic of0.1760.1960.0200.008000.0001613194
NZLNew Zealand258.832278.63619.80411.40.221254
PLWPalau, Republic of0.3450.3770.0320.01540.0003011192
PNGPapua New Guinea32.49134.4031.9121.400.02723115
WSMSamoa1.2881.3760.0880.05610.001097184
SLBSolomon Islands1.7041.8360.1320.07490.001455180
TONTonga0.6800.7160.0360.02920.000578189
TUVTuvalu0.0580.0650.0070.002650.0000514195
VUTVanuatu1.3161.3960.0800.05700.001116183
Oceania 2,144.051 2,450.580 306.529 1.94
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GDP (PPP)

Code Country/Economy GDP (billions of Int. $) Share (%) Rank PPP/Nom
20252026ChangeOceaniaWorld OceaniaWorld
AUSAustralia2,000.2562,098.88898.63284.40.9421220.988
FJIFiji, Republic of15.25216.0700.8180.6460.0072141582.530
KIRKiribati0.4860.5150.0290.02070.0002391901.284
MHLMarshall Islands, Republic of the0.2820.3010.0190.01210.00014121930.880
FSMMicronesia, Federated States of0.4610.4780.0170.01920.00021101910.917
NRUNauru, Republic of0.1430.1500.0070.006030.00007131940.765
NZLNew Zealand297.264312.29715.03312.60.1402691.121
PLWPalau, Republic of0.3400.3610.0210.01450.00016111920.958
PNGPapua New Guinea48.82252.1053.2832.090.023431351.515
WSMSamoa1.7871.8970.1100.07630.0008561841.379
SLBSolomon Islands2.0722.1900.1180.08800.0009851831.193
TONTonga0.7980.8400.0420.03380.0003881891.173
TUVTuvalu0.0610.0640.0030.002570.00003141950.985
VUTVanuatu1.3171.4020.0850.05640.0006371881.004
Oceania 2,369.341 2,487.558 118.217 1.12 1.015