| 項目 |
| G |
| G コード |
| G パン［(和) jeans＋pants］ |
| G マーク［good design mark］ |
| G1［grade one］ |
| G3［Group of Three］ |
| G5［Group of Five; Conference of Ministers and Governors of the Group of Five］ |
| G7［Group of Seven; Conference of Ministers and Governors of the Group of Seven］ |
| G8［Group of Eight; Conference of Ministers and Governors of the Group of Eight］ |
| G15［Group of 15］ |
| G 77［Group of 77］ |
| g［gram（s）; (フ) gramme］ |
| g［gravity］ |
| GA1［Gabonese Republic］ |
| GA2［Garuda Indonesia Airways］ |
| GA3［general agent］ |
| GA4［general average］ |
| GA5［genetic algorithm］ |
| Ga［gallium］ |
| GAB1［Gabonese Republic］ |
| GAB2（ギャブ）［General Arrangement to Borrow］ |
| GABA（ギャバ）［γ-aminobutyric acid］ |
| GAISF［General Association of International Sports Federation］ |
| Gal［gal］ |
| gal.［gallon］ |
| GAM［Republic of the Gambia］ |
| GAME［Global Energy and Water Cycle Experiment Asian Monsoon Experiment］ |
| γ-GTP［γ-glutamyl transpeptidase］ |
| GAO（ガオ）［General Accounting Office］ |
| GARIOA（ガリオア）［Government and Relief in Occupied Areas Fund］ |
| GARP（ガープ）［Global Atmospheric Research Program］ |
| GASP（ギャスプ）［Group Against Smoker's Pollution］ |
| GATT（ガット）［General Agreement on Tariffs and Trade］ |
| GAW［Global Atmosphere Watch］ |
| GB1［giga byte］ |
| GB2［United Kingdom of Great Britain and Northern Ireland］ |
| GB 理論［theory of government and binding］ |
| GBR［United Kingdom of Great Britain and Northern Ireland］ |
| GCA［ground-controlled approach system］ |
| GCC［Gulf Cooperation Council］ |
| GCD［greatest common divisor］ |
| GCF［greatest common factor］ |
| GCM［greatest common measure］ |
| GCOS［Global Climate Observing System］ |
| GCP［good clinical practice］ |
| GCR［gas-cooled reactor］ |
| GCS［Global Custody Service］ |
| G-CSF［granulocyte-colony stimulating factor］ |
| GCT, G.C.T.［Greenwich civil time］ |
| GD［Grenada］ |
| Gd［gadolinium］ |
| GDE［gross domestic expenditure］ |
| GDI1［gasoline direct injection］ |
| GDI2［graphics device interface］ |
| GDP［gross domestic product］ |
| GDP ギャップ［GDP gap］ |
| GDP 弾性値［energy-GDP elasticity］ |
| GDP デフレーター［gross domestic product deflator］ |
| GDR［German Democratic Republic］ |
| GE1［General Electric Company］ |
| GE2［grant element］ |
| GE3［Republic of Georgia］ |
| Ge［(ド) Germanium］ |
| Ge 検出器［germanium semiconductor detector］ |
| GEC［General Electric Company］ |
| GEF（ジェフ）［Global Environment Facility］ |
| GEIC［Global Environment Information Center］ |
| GEM（ジェム）［ground-effect machine］ |
| GEMS（ジェムス）［global environmental monitoring system］ |
| GEO［Republic of Georgia］ |
| GeO-TOC 計画［Geophysical and Oceanographical Trans Ocean Cable Project］ |
| GEQ［Republic of Equatorial Guinea］ |
| GER［Federal Republic of Germany］ |
| GF［French Guiana］ |
| GFRP［glass fiber reinforced plastics］ |
| GG 石油［government-to-government crude oil］ |
| GGG［gadolinium-gallium garnet］ |
| GH1［growth hormone］ |
| GH2［Republic of Ghana］ |
| GHA［Republic of Ghana］ |
| GHG［greenhouse gases］ |
| GHQ［General Headquarters］ |
| GI1［Gibraltar］ |
| GI2［Government Issue］ |
| GIF（ジフ）［graphics interchange format］ |
| .gif［graphics interchange format］ |
| GIFT［gamete intra-fallopian transfer］ |
| GIG［Galeao］ |
| GII［global information infrastructure］ |
| GIIC［global information infrastructure commission］ |
| GIS1［geographic information system］ |
| GIS2［global information system］ |
| GISA［Geographic Information System Association］ |
| GIT［group inclusive tour］ |
| GK1［goal keeper］ |
| GK2［goal kick］ |
| GL［Greenland］ |
| GLOBE［Global Legislators Organization for a Balanced Environment］ |
| GLP［good laboratory practice］ |
| GM1［general manager］ |
| GM2［General Motors Corporation］ |
| GM3［Republic of the Gambia］ |
| GM 管［Geiger-Muller counter］ |
| gm［gram（s）］ |
| GMAT［Graduate Management Admission Test］ |
| GmbH［(ド) Gesellschaft mit beschrankter Haftung］ |
| GMDSS［Global Maritime Distress and Safety System］ |
| G-men［Government men］ |
| GMOs［genetically modified organisms］ |
| GMP［good manufacturing practice］ |
| GMS［general merchandise store］ |
| GMT［Greenwich mean time］ |
| GN［Republic of Guinea］ |
| GNB［Republic of Guinea-Bissau］ |
| GND［gross national demand］ |
| GNE［gross national expenditure］ |
| GNP［gross national product］ |
| GNP 弾性値［energy-GNP elasticity］ |
| GNW［gross national welfare］ |
| GOLKAR［(インドネシア) Golongan Karya］ |
| GOOS［global oceans observing system］ |
| GOT［glutamic-oxaloacetic transaminase］ |
| GP1［(フ) Grand Prix］ |
| GP2［Guadeloupe］ |
| GPALS［Global Protection Against Limited Strikes］ |
| GPCP［global precipitation climate program］ |
| GPMSP［good post-marketing surveillance practice］ |
| GPS［global positioning system］ |
| GPSP［good post-marketing surveillance practice］ |
| GPT［glutamic pyruvic transaminase］ |
| GQ［Republic of Equatorial Guinea］ |
| GR［Hellenic Republic］ |
| gr1［grain］ |
| gr2［(フ) gramme］ |
| gr.［gross］ |
| GRAS（グラス）リスト［generally recognized as safe list］ |
| GRC［glass fiber reinforced cement（concrete）］ |
| GRE［Hellenic Republic］ |
| GRN［Grenada］ |
| GRO［γ-ray observatory］ |
| GRP［gross rating point］ |
| GRT［group rapid transit］ |
| GRU［Sao Paulo］ |
| GS1［gas station］ |
| GS2［(和) group＋sounds］ |
| Gs［gauss］ |
| GSDF［Ground Self-Defense Forces］ |
| GSM［Global System for Mobile communications］ |
| G.S.M.［(フ) groupe special mobile］ |
| GSP［Government Selling Price］ |
| GSR［galvanic skin response］ |
| GT1［grand touring car］ |
| GT2［Greenwich time］ |
| GT3［group technology］ |
| GT4［Republic of Guatemala］ |
| G.T.O.［(イ) Gran Turismo Omologare］ |
| GT-R［grand touring-racing version］ |
| GU［Guam］ |
| GUA［Republic of Guatemala］ |
| GUI1［graphical user interface］ |
| GUI2［Republic of Guinea］ |
| GUM［Guam］ |
| GUT［grand unified theory］ |
| GUY［Co-operative Republic of Guyana］ |
| GVA［Geneve; Geneva］ |
| GVH 反応［graft-versus-host reaction］ |
| GW1［(和) Golden＋Week］ |
| GW2［Republic of Guinea-Bissau］ |
| gw［gram-weight］ |
| GWP［global warming potential］ |
| GY1［Co-operative Republic of Guyana］ |
| GY2［green-yellow］ |
| Gy［gray］ |
| .gz［gzip］ |