diff --git a/src/scripts/delete-dangling-data-values.ts b/src/scripts/delete-dangling-data-values.ts
new file mode 100644
index 00000000..019f82dc
--- /dev/null
+++ b/src/scripts/delete-dangling-data-values.ts
@@ -0,0 +1,184 @@
+import _ from "lodash";
+import parse from "parse-typed-args";
+import { D2Api, Id } from "../types/d2-api";
+import { getConfig, Config } from "../models/Config";
+import Project from "../models/Project";
+import ProjectDb, { DataValue, getStringDataValue } from "../models/ProjectDb";
+import ProjectsList from "../models/ProjectsList";
+import { writeDataFilePath, readDataFilePath, assert } from "./common";
+
+main().catch(err => {
+    console.error(err);
+    process.exit(1);
+});
+
+const paths = {
+    danglingReport: "dangling-data-values-report",
+    danglingToDelete: "dangling-data-values-to-delete",
+};
+
+async function main() {
+    const parser = parse({
+        opts: {
+            url: {},
+            project: {},
+            generate: { switch: true },
+            post: { switch: true },
+        },
+    });
+    const { opts } = parser(process.argv);
+
+    const usage = [
+        "Usage: delete-dangling-data-values --url=DHIS2URL [--generate | --post] [--project=PROJECT_ID]",
+        "",
+        "Options:",
+        "  --url        DHIS2 instance URL (required)",
+        "  --generate   Detect dangling data values and write report files (dry run)",
+        "  --post       Delete the dangling data values found by a previous --generate run",
+        "  --project    Process only a specific project by ID (optional, processes all if omitted)",
+    ].join("\n");
+
+    const app = opts.url ? await getAppContext(opts.url) : null;
+
+    if (!app) {
+        console.error(usage);
+        process.exit(1);
+    } else if (opts.generate) {
+        await generateReport(app, opts.project);
+    } else if (opts.post) {
+        await postDeletion(app);
+    } else {
+        console.error(usage);
+        process.exit(1);
+    }
+}
+
+interface AppContext {
+    api: D2Api;
+    config: Config;
+}
+
+async function getAppContext(baseUrl: string): Promise<AppContext> {
+    const api = new D2Api({ baseUrl });
+    const config = await getConfig(api);
+    return { api, config };
+}
+
+interface ProjectDanglingResult {
+    projectId: Id;
+    projectName: string;
+    countryName: string;
+    danglingValues: DataValue[];
+}
+
+async function getProjectIds(api: D2Api, config: Config): Promise<Id[]> {
+    const { objects: projectItems } = await new ProjectsList(api, config).get(
+        {},
+        { field: "id", order: "asc" },
+        { page: 1, pageSize: 100000 }
+    );
+
+    return _(projectItems)
+        .orderBy([project => project.parent.displayName, project => project.displayName])
+        .map(project => project.id)
+        .value();
+}
+
+async function generateReport(app: AppContext, projectIdFilter?: string) {
+    const { api, config } = app;
+
+    const projectIds = projectIdFilter ? [projectIdFilter] : await getProjectIds(api, config);
+
+    console.log(`Processing ${projectIds.length} project(s)...`);
+
+    const allResults: ProjectDanglingResult[] = [];
+    let totalDangling = 0;
+
+    for (const [idx, projectId] of projectIds.entries()) {
+        let project: Project;
+        try {
+            project = await Project.get(api, config, projectId);
+        } catch (err) {
+            console.error(
+                `  [${idx + 1}/${projectIds.length}] Error loading project ${projectId}: ${err}`
+            );
+            continue;
+        }
+
+        const projectName = project.name;
+        const countryName = project.parentOrgUnit?.displayName || "Unknown";
+        console.log(
+            `  [${idx + 1}/${projectIds.length}] [${countryName}] ${projectName} (${projectId})`
+        );
+
+        const projectDb = new ProjectDb(project);
+        const danglingValues = await projectDb.getDanglingDataValues();
+
+        if (danglingValues.length > 0) {
+            console.log(`    -> Found ${danglingValues.length} dangling data value(s)`);
+            danglingValues.forEach(dv => console.log(`       ${getStringDataValue(dv)}`));
+
+            allResults.push({ projectId, projectName, countryName, danglingValues });
+            totalDangling += danglingValues.length;
+        }
+    }
+
+    console.log(
+        `\nSummary: ${totalDangling} dangling data value(s) across ${allResults.length} project(s)`
+    );
+
+    if (totalDangling === 0) {
+        console.log("Nothing to delete.");
+        return;
+    }
+
+    // Write human-readable report
+    const report = allResults.map(result => ({
+        project: `[${result.countryName}] ${result.projectName} (${result.projectId})`,
+        count: result.danglingValues.length,
+        dataValues: result.danglingValues.map(getStringDataValue),
+    }));
+    writeDataFilePath(paths.danglingReport, report);
+
+    // Write DHIS2 delete payload
+    const dataValuesToDelete = allResults.flatMap(result =>
+        result.danglingValues.map(dv => ({
+            dataElement: dv.dataElement.id,
+            period: dv.period,
+            orgUnit: result.projectId,
+            categoryOptionCombo: dv.categoryOptionCombo.id,
+            attributeOptionCombo: dv.attributeOptionCombo.id,
+            value: "",
+        }))
+    );
+
+    writeDataFilePath(paths.danglingToDelete, { dataValues: dataValuesToDelete });
+
+    console.log(`\nReview the report, then run with --post to delete.`);
+}
+
+async function postDeletion(app: AppContext) {
+    let metadata: { dataValues: Array<Record<string, string>> };
+    try {
+        metadata = readDataFilePath(paths.danglingToDelete);
+    } catch (err) {
+        console.error(`Cannot read delete payload. Run --generate first.`);
+        process.exit(1);
+    }
+
+    const count = metadata.dataValues.length;
+    if (count === 0) {
+        console.log("No data values to delete.");
+        return;
+    }
+
+    console.log(`Deleting ${count} dangling data value(s)...`);
+
+    const res = await app.api.dataValues
+        .postSet({ importStrategy: "DELETE" }, metadata as any)
+        .getData();
+
+    console.log("Response:", JSON.stringify(res, null, 2));
+    assert(res.status === "SUCCESS", `Delete failed: ${JSON.stringify(res)}`);
+    console.log("Done. Dangling data values deleted successfully.");
+}