diff --git a/distribution/docker/src/docker/config/elasticsearch.yml b/distribution/docker/src/docker/config/opensearch.yml
similarity index 100%
rename from distribution/docker/src/docker/config/elasticsearch.yml
rename to distribution/docker/src/docker/config/opensearch.yml
diff --git a/distribution/packages/src/common/env/elasticsearch b/distribution/packages/src/common/env/opensearch
similarity index 100%
rename from distribution/packages/src/common/env/elasticsearch
rename to distribution/packages/src/common/env/opensearch
diff --git a/distribution/packages/src/common/systemd/elasticsearch.conf b/distribution/packages/src/common/systemd/opensearch.conf
similarity index 100%
rename from distribution/packages/src/common/systemd/elasticsearch.conf
rename to distribution/packages/src/common/systemd/opensearch.conf
diff --git a/distribution/packages/src/common/systemd/elasticsearch.service b/distribution/packages/src/common/systemd/opensearch.service
similarity index 100%
rename from distribution/packages/src/common/systemd/elasticsearch.service
rename to distribution/packages/src/common/systemd/opensearch.service
diff --git a/distribution/packages/src/common/systemd/sysctl/elasticsearch.conf b/distribution/packages/src/common/systemd/sysctl/opensearch.conf
similarity index 100%
rename from distribution/packages/src/common/systemd/sysctl/elasticsearch.conf
rename to distribution/packages/src/common/systemd/sysctl/opensearch.conf
diff --git a/distribution/packages/src/deb/init.d/elasticsearch b/distribution/packages/src/deb/init.d/opensearch
similarity index 100%
rename from distribution/packages/src/deb/init.d/elasticsearch
rename to distribution/packages/src/deb/init.d/opensearch
diff --git a/distribution/packages/src/deb/lintian/elasticsearch b/distribution/packages/src/deb/lintian/opensearch
similarity index 100%
rename from distribution/packages/src/deb/lintian/elasticsearch
rename to distribution/packages/src/deb/lintian/opensearch
diff --git a/distribution/packages/src/rpm/init.d/elasticsearch b/distribution/packages/src/rpm/init.d/opensearch
similarity index 100%
rename from distribution/packages/src/rpm/init.d/elasticsearch
rename to distribution/packages/src/rpm/init.d/opensearch
diff --git a/distribution/src/bin/elasticsearch b/distribution/src/bin/opensearch
similarity index 100%
rename from distribution/src/bin/elasticsearch
rename to distribution/src/bin/opensearch
diff --git a/distribution/src/bin/elasticsearch-cli b/distribution/src/bin/opensearch-cli
similarity index 100%
rename from distribution/src/bin/elasticsearch-cli
rename to distribution/src/bin/opensearch-cli
diff --git a/distribution/src/bin/elasticsearch-cli.bat b/distribution/src/bin/opensearch-cli.bat
similarity index 100%
rename from distribution/src/bin/elasticsearch-cli.bat
rename to distribution/src/bin/opensearch-cli.bat
diff --git a/distribution/src/bin/elasticsearch-env b/distribution/src/bin/opensearch-env
similarity index 100%
rename from distribution/src/bin/elasticsearch-env
rename to distribution/src/bin/opensearch-env
diff --git a/distribution/src/bin/elasticsearch-env-from-file b/distribution/src/bin/opensearch-env-from-file
similarity index 100%
rename from distribution/src/bin/elasticsearch-env-from-file
rename to distribution/src/bin/opensearch-env-from-file
diff --git a/distribution/src/bin/elasticsearch-env.bat b/distribution/src/bin/opensearch-env.bat
similarity index 100%
rename from distribution/src/bin/elasticsearch-env.bat
rename to distribution/src/bin/opensearch-env.bat
diff --git a/distribution/src/bin/elasticsearch-keystore b/distribution/src/bin/opensearch-keystore
similarity index 100%
rename from distribution/src/bin/elasticsearch-keystore
rename to distribution/src/bin/opensearch-keystore
diff --git a/distribution/src/bin/elasticsearch-keystore.bat b/distribution/src/bin/opensearch-keystore.bat
similarity index 100%
rename from distribution/src/bin/elasticsearch-keystore.bat
rename to distribution/src/bin/opensearch-keystore.bat
diff --git a/distribution/src/bin/elasticsearch-node b/distribution/src/bin/opensearch-node
similarity index 100%
rename from distribution/src/bin/elasticsearch-node
rename to distribution/src/bin/opensearch-node
diff --git a/distribution/src/bin/elasticsearch-node.bat b/distribution/src/bin/opensearch-node.bat
similarity index 100%
rename from distribution/src/bin/elasticsearch-node.bat
rename to distribution/src/bin/opensearch-node.bat
diff --git a/distribution/src/bin/elasticsearch-plugin b/distribution/src/bin/opensearch-plugin
similarity index 100%
rename from distribution/src/bin/elasticsearch-plugin
rename to distribution/src/bin/opensearch-plugin
diff --git a/distribution/src/bin/elasticsearch-plugin.bat b/distribution/src/bin/opensearch-plugin.bat
similarity index 100%
rename from distribution/src/bin/elasticsearch-plugin.bat
rename to distribution/src/bin/opensearch-plugin.bat
diff --git a/distribution/src/bin/elasticsearch-service-mgr.exe b/distribution/src/bin/opensearch-service-mgr.exe
similarity index 100%
rename from distribution/src/bin/elasticsearch-service-mgr.exe
rename to distribution/src/bin/opensearch-service-mgr.exe
diff --git a/distribution/src/bin/elasticsearch-service-x64.exe b/distribution/src/bin/opensearch-service-x64.exe
similarity index 100%
rename from distribution/src/bin/elasticsearch-service-x64.exe
rename to distribution/src/bin/opensearch-service-x64.exe
diff --git a/distribution/src/bin/elasticsearch-service.bat b/distribution/src/bin/opensearch-service.bat
similarity index 100%
rename from distribution/src/bin/elasticsearch-service.bat
rename to distribution/src/bin/opensearch-service.bat
diff --git a/distribution/src/bin/elasticsearch-shard b/distribution/src/bin/opensearch-shard
similarity index 100%
rename from distribution/src/bin/elasticsearch-shard
rename to distribution/src/bin/opensearch-shard
diff --git a/distribution/src/bin/elasticsearch-shard.bat b/distribution/src/bin/opensearch-shard.bat
similarity index 100%
rename from distribution/src/bin/elasticsearch-shard.bat
rename to distribution/src/bin/opensearch-shard.bat
diff --git a/distribution/src/bin/elasticsearch.bat b/distribution/src/bin/opensearch.bat
similarity index 100%
rename from distribution/src/bin/elasticsearch.bat
rename to distribution/src/bin/opensearch.bat
diff --git a/distribution/src/config/elasticsearch.yml b/distribution/src/config/opensearch.yml
similarity index 100%
rename from distribution/src/config/elasticsearch.yml
rename to distribution/src/config/opensearch.yml
diff --git a/modules/analysis-common/src/main/resources/META-INF/services/org.elasticsearch.painless.spi.PainlessExtension b/modules/analysis-common/src/main/resources/META-INF/services/org.opensearch.painless.spi.PainlessExtension
similarity index 100%
rename from modules/analysis-common/src/main/resources/META-INF/services/org.elasticsearch.painless.spi.PainlessExtension
rename to modules/analysis-common/src/main/resources/META-INF/services/org.opensearch.painless.spi.PainlessExtension
diff --git a/modules/lang-painless/src/test/resources/org/elasticsearch/painless/spi/org.elasticsearch.painless.test b/modules/lang-painless/src/test/resources/org/elasticsearch/painless/spi/org.opensearch.painless.test
similarity index 100%
rename from modules/lang-painless/src/test/resources/org/elasticsearch/painless/spi/org.elasticsearch.painless.test
rename to modules/lang-painless/src/test/resources/org/elasticsearch/painless/spi/org.opensearch.painless.test
diff --git a/modules/parent-join/src/main/resources/META-INF/services/org.elasticsearch.plugins.spi.NamedXContentProvider b/modules/parent-join/src/main/resources/META-INF/services/org.opensearch.plugins.spi.NamedXContentProvider
similarity index 100%
rename from modules/parent-join/src/main/resources/META-INF/services/org.elasticsearch.plugins.spi.NamedXContentProvider
rename to modules/parent-join/src/main/resources/META-INF/services/org.opensearch.plugins.spi.NamedXContentProvider
diff --git a/modules/rank-eval/src/main/resources/META-INF/services/org.elasticsearch.plugins.spi.NamedXContentProvider b/modules/rank-eval/src/main/resources/META-INF/services/org.opensearch.plugins.spi.NamedXContentProvider
similarity index 100%
rename from modules/rank-eval/src/main/resources/META-INF/services/org.elasticsearch.plugins.spi.NamedXContentProvider
rename to modules/rank-eval/src/main/resources/META-INF/services/org.opensearch.plugins.spi.NamedXContentProvider
diff --git a/plugins/examples/painless-whitelist/src/main/resources/META-INF/services/org.elasticsearch.painless.spi.PainlessExtension b/plugins/examples/painless-whitelist/src/main/resources/META-INF/services/org.opensearch.painless.spi.PainlessExtension
similarity index 100%
rename from plugins/examples/painless-whitelist/src/main/resources/META-INF/services/org.elasticsearch.painless.spi.PainlessExtension
rename to plugins/examples/painless-whitelist/src/main/resources/META-INF/services/org.opensearch.painless.spi.PainlessExtension