Only the |Name and |Image parameters are mandatory. However, |Use={{FIAV#Usage symbols}} is required for the |Symbol parameter. (see #Example).
General
Name
Name of entity.
Article
Term to include before name of entity, e.g. the.
Image_size
Size of images to use in infobox; if not specified, default is 255x170px.
Flag-specific
Each of these fields can be given a suffix from 2 to 6 in order to specify up to 6 variants (war flags, naval ensigns, air force ensigns, alternative civil flags, etc.) of the national flag, in addition to the main (non-suffixed) version considered the national flag. For an example, see Flag of Morocco. All of the following parameters are optional with the exception of |Image. However, |Use={{FIAV#Usage symbols}} is required for |Symbol. (see #Example).
Image
Filename excluding Image: or File: prefix.
Imagetext
Caption for the image.
Noborder
Leave this field blank to display image with border by default for rectangular flag. For non-rectangular flag, type no.
Nickname
Name of the flag.
Morenicks
More names of the flag, separated by commas.
Use
6-bit FIAV usage code (see {{FIAV#Usage symbols}}). Required for |Symbol.
Alt text for the image, for visually impaired readers. See Wikipedia:Alternative text for images. If omitted or empty, the |Design parameter should contain a suitable description, or there should be nearby text in the article that describes the image.
A white UN emblem (world map surrounded by two olive branches) on a light blue background.
Designed by
Donal McLaughlin (emblem only)
{{Infobox flag| Name = United Nations| Article = the| Image = Flag of the United Nations.svg| Image_size = 200px| Alt = Flag of the United Nations| Use = 000000| Symbol = [[File:IFIS Equal.svg]]| Proportion = 2:3 or 3:5| Adoption = December 7, 1946| Design = A white UN emblem (world map surrounded by two olive branches) on a light blue background.| Designer = [[Donal McLaughlin]] (emblem only)}}
Code
One flag
{{Infobox flag| Name = | Article = | Image = | Alt = | Noborder = <!-- Leave blank for rectangular flag; for non-rectangular flag, type "no". -->| Nickname = | Morenicks = | Use = <!-- Required for |Symbol -->| Symbol = <!-- |Use="6-digit FIAV usage code" is required. -->| Proportion = | Adoption = | Relinquished = | Design = | Designer = }}
Two flags
{{Infobox flag| Name = | Article = | Image = | Alt = | Noborder = <!-- Leave blank for rectangular flag; for non-rectangular flag, type "no". -->| Nickname = | Morenicks = | Use = <!-- Required for |Symbol -->| Symbol = <!-- |Use="6-digit FIAV usage code" is required. -->| Proportion = | Adoption = | Relinquished = | Design = | Designer = | Image2 = | Alt2 = | Noborder2 = <!-- Leave blank for rectangular flag; for non-rectangular flag, type "no". -->| Nickname2 = | Morenicks2 = | Use2 = <!-- Required for |Symbol2 -->| Symbol2 = <!-- |Use2="6-digit FIAV usage code" is required. -->| Proportion2 = | Adoption2 = | Design2 = | Designer2 = }}
Three flags... and so on
{{Infobox flag| Name = | Article = | Image = | Alt = | Noborder = <!-- Leave blank for rectangular flag; for non-rectangular flag, type "no". -->| Nickname = | Morenicks = | Use = <!-- Required for |Symbol -->| Symbol = <!-- |Use="6-digit FIAV usage code" is required. -->| Proportion = | Adoption =| Relinquished = | Design = | Designer = | Image2 = | Alt2 = | Noborder2 = <!-- Leave blank for rectangular flag; for non-rectangular flag, type "no". -->| Nickname2 = | Morenicks2 = | Use2 = <!-- Required for |Symbol2 -->| Symbol2 = <!-- |Use2="6-digit FIAV usage code" is required. -->| Proportion2 = | Adoption2 = | Design2 = | Designer2 = | Image3 = | Alt3 = | Noborder3 = <!-- Leave blank for rectangular flag; for non-rectangular flag, type "no". -->| Nickname3 = | Morenicks3 = | Use3 = <!-- Required for |Symbol3 -->| Symbol3 = <!-- |Use3="6-digit FIAV usage code" is required. -->| Proportion3 = | Adoption3 = | Design3 = | Designer3 = }}