diff --git a/crates/store/re_data_source/src/data_source.rs b/crates/store/re_data_source/src/data_source.rs
index 5712ffa26770..353e97dac289 100644
--- a/crates/store/re_data_source/src/data_source.rs
+++ b/crates/store/re_data_source/src/data_source.rs
@@ -240,6 +240,92 @@ impl LogDataSource {
             Self::RedapProxy(uri) => Ok(re_grpc_client::stream(uri)),
         }
     }
+
+    /// Returns analytics data for this data source.
+    pub fn analytics(&self) -> LogDataSourceAnalytics {
+        match self {
+            Self::RrdHttpUrl { url, .. } => {
+                let file_extension = std::path::Path::new(url.path())
+                    .extension()
+                    .and_then(|e| e.to_str())
+                    .map(|s| s.to_lowercase());
+                LogDataSourceAnalytics {
+                    source_type: "rrd_http_url",
+                    file_extension,
+                    file_source: None,
+                }
+            }
+
+            #[cfg(not(target_arch = "wasm32"))]
+            Self::FilePath(file_src, path) => {
+                let file_extension = path
+                    .extension()
+                    .and_then(|e| e.to_str())
+                    .map(|s| s.to_lowercase());
+                LogDataSourceAnalytics {
+                    source_type: "file_path",
+                    file_extension,
+                    file_source: Some(Self::file_source_to_analytics_str(file_src)),
+                }
+            }
+
+            Self::FileContents(file_src, file_contents) => {
+                let file_extension = std::path::Path::new(&file_contents.name)
+                    .extension()
+                    .and_then(|e| e.to_str())
+                    .map(|s| s.to_lowercase());
+                LogDataSourceAnalytics {
+                    source_type: "file_contents",
+                    file_extension,
+                    file_source: Some(Self::file_source_to_analytics_str(file_src)),
+                }
+            }
+
+            #[cfg(not(target_arch = "wasm32"))]
+            Self::Stdin => LogDataSourceAnalytics {
+                source_type: "stdin",
+                file_extension: None,
+                file_source: None,
+            },
+
+            Self::RedapDatasetSegment { .. } => LogDataSourceAnalytics {
+                source_type: "redap_dataset_segment",
+                file_extension: None,
+                file_source: None,
+            },
+
+            Self::RedapProxy(_) => LogDataSourceAnalytics {
+                source_type: "redap_proxy",
+                file_extension: None,
+                file_source: None,
+            },
+        }
+    }
+
+    fn file_source_to_analytics_str(file_source: &re_log_types::FileSource) -> &'static str {
+        use re_log_types::FileSource;
+        match file_source {
+            FileSource::Cli => "cli",
+            FileSource::Uri => "uri",
+            FileSource::DragAndDrop { .. } => "drag_and_drop",
+            FileSource::FileDialog { .. } => "file_dialog",
+            FileSource::Sdk => "sdk",
+        }
+    }
+}
+
+/// Analytics data extracted from a [`LogDataSource`].
+#[derive(Clone, Debug)]
+pub struct LogDataSourceAnalytics {
+    /// The type of data source (e.g., "file", "http", ``redap_grpc``, "stdin").
+    pub source_type: &'static str,
+
+    /// The file extension if applicable (e.g., "rrd", "png", "glb").
+    pub file_extension: Option<String>,
+
+    /// How the file was opened (e.g., "cli", ``file_dialog``, ``drag_and_drop``).
+    /// Only applicable for file-based sources.
+    pub file_source: Option<&'static str>,
 }
 
 // TODO(ab, andreas): This should be replaced by the use of `AsyncRuntimeHandle`. However, this
diff --git a/crates/store/re_data_source/src/lib.rs b/crates/store/re_data_source/src/lib.rs
index 69477fa407e6..8bfa2b979495 100644
--- a/crates/store/re_data_source/src/lib.rs
+++ b/crates/store/re_data_source/src/lib.rs
@@ -11,7 +11,7 @@ mod data_source;
 #[cfg(not(target_arch = "wasm32"))]
 mod load_stdin;
 
-pub use self::data_source::LogDataSource;
+pub use self::data_source::{LogDataSource, LogDataSourceAnalytics};
 
 // ----------------------------------------------------------------------------
 
diff --git a/crates/utils/re_analytics/src/event.rs b/crates/utils/re_analytics/src/event.rs
index 1db0f1ce5ef7..5d25eb22195c 100644
--- a/crates/utils/re_analytics/src/event.rs
+++ b/crates/utils/re_analytics/src/event.rs
@@ -458,6 +458,47 @@ impl Properties for SetPersonProperty {
 
 // -----------------------------------------------
 
+/// Tracks when a data source is loaded from the viewer.
+///
+/// This is sent when a user opens a file, URL, or other data source.
+pub struct LoadDataSource {
+    /// The type of data source being loaded (e.g., "file", "http" etc.).
+    pub source_type: &'static str,
+
+    /// The file extension if applicable (e.g., "rrd", "png", "glb").
+    /// None for non-file sources like stdin or gRPC streams.
+    pub file_extension: Option<String>,
+
+    /// How the file was opened (e.g., "cli", "`file_dialog`" etc.).
+    /// Only applicable for file-based sources.
+    pub file_source: Option<&'static str>,
+
+    /// Whether the data source stream was started successfully.
+    pub started_successfully: bool,
+}
+
+impl Event for LoadDataSource {
+    const NAME: &'static str = "load_data_source";
+}
+
+impl Properties for LoadDataSource {
+    fn serialize(self, event: &mut AnalyticsEvent) {
+        let Self {
+            source_type,
+            file_extension,
+            file_source,
+            started_successfully,
+        } = self;
+
+        event.insert("source_type", source_type);
+        event.insert_opt("file_extension", file_extension);
+        event.insert_opt("file_source", file_source.map(|s| s.to_owned()));
+        event.insert("started_successfully", started_successfully);
+    }
+}
+
+// -----------------------------------------------
+
 #[cfg(test)]
 mod tests {
     use super::*;
diff --git a/crates/viewer/re_viewer/src/app.rs b/crates/viewer/re_viewer/src/app.rs
index 7b5127ad0890..05caa040149f 100644
--- a/crates/viewer/re_viewer/src/app.rs
+++ b/crates/viewer/re_viewer/src/app.rs
@@ -1360,7 +1360,19 @@ impl App {
             }
         }
 
-        match data_source.clone().stream(&self.connection_registry) {
+        let stream = data_source.clone().stream(&self.connection_registry);
+        #[cfg(feature = "analytics")]
+        if let Some(analytics) = re_analytics::Analytics::global_or_init() {
+            let data_source_analytics = data_source.analytics();
+            analytics.record(re_analytics::event::LoadDataSource {
+                source_type: data_source_analytics.source_type,
+                file_extension: data_source_analytics.file_extension,
+                file_source: data_source_analytics.file_source,
+                started_successfully: stream.is_ok(),
+            });
+        }
+
+        match stream {
             Ok(rx) => self.add_log_receiver(rx),
             Err(err) => {
                 re_log::error!("Failed to open data source: {}", re_error::format(err));