Drupal 8 view template naming convention to make drupal 8 views theming easier.

Drupal 8 view template naming convention for a BLOCK display using Unformatted List format.

The following list is for a view that:

1. is a “block” display type
2. uses format “Unformatted List”

Be sure to replace the variables: {VIEW_ID}, {BLOCK_ID}, {FIELD_NAME}

The ones marked with * are the defaults,

  1. search for this file name in your installation\core\modules\views\templates
  2. copy it to your theme’s \templates\views folder
  3. rename it to something more specific from the list using your variables.
//-------------------------
// Display output: 
// The overall wrapper for the view.
//-------------------------
views-view.html.twig, *
views-view--{VIEW_ID}.html.twig,
views-view--block.html.twig,
views-view--{VIEW_ID}--block.html.twig,
views-view--default.html.twig,
views-view--{BLOCK_ID}.html.twig,
views-view--{VIEW_ID}--{BLOCK_ID}.html.twig

//-------------------------
// Style output: 
// Wrapper for the actual content of the view
//-------------------------
views-view-unformatted.html.twig, *
views-view-unformatted--{VIEW_ID}.html.twig,
views-view-unformatted--block.html.twig,
views-view-unformatted--{VIEW_ID}--block.html.twig,
views-view-unformatted--default.html.twig,
views-view-unformatted--{BLOCK_ID}.html.twig,
views-view-unformatted--{VIEW_ID}--{BLOCK_ID}.html.twig

//-------------------------
// Row style output: 
// Individually returned records of the view
//-------------------------
views-view-fields.html.twig, *
views-view-fields--{VIEW_ID}.html.twig,
views-view-fields--block.html.twig,
views-view-fields--{VIEW_ID}--block.html.twig,
views-view-fields--default.html.twig,
views-view-fields--{BLOCK_ID}.html.twig,
views-view-fields--{VIEW_ID}--{BLOCK_ID}.html.twig

//-------------------------
// Field Content:
// Individual field items inside of a record
//-------------------------
views-view-field.html.twig, *
views-view-field--{FIELD_NAME}.html.twig,
views-view-field--{VIEW_ID}.html.twig,
views-view-field--{VIEW_ID}--{FIELD_NAME}.html.twig,
views-view-field--block.html.twig,
views-view-field--block--{FIELD_NAME}.html.twig,
views-view-field--{VIEW_ID}--block.html.twig,
views-view-field--{VIEW_ID}--block--{FIELD_NAME}.html.twig,
views-view-field--{BLOCK_ID}.html.twig,
views-view-field--{BLOCK_ID}--{FIELD_NAME}.html.twig,
views-view-field--{VIEW_ID}--{BLOCK_ID}.html.twig,
views-view-field--{VIEW_ID}--{BLOCK_ID}--{FIELD_NAME}.html.twig

Cheers!