diff --git a/packages/database/scripts/db-deploy.cjs b/packages/database/scripts/db-deploy.cjs
index a9cfe43..63e5d83 100644
--- a/packages/database/scripts/db-deploy.cjs
+++ b/packages/database/scripts/db-deploy.cjs
@@ -15,6 +15,30 @@ const prismaBin = path.join(repoRoot, 'node_modules', '.bin', 'prisma')
 const schemaPath = path.join(repoRoot, 'packages/database/prisma/schema.prisma')
 const migrationsDir = path.join(repoRoot, 'packages/database/prisma/migrations')
 
+function getDatabaseName(databaseUrl) {
+  try {
+    const parsed = new URL(databaseUrl)
+    const databaseName = parsed.pathname.replace(/^\/+/, '')
+    return databaseName ? decodeURIComponent(databaseName) : null
+  } catch {
+    return null
+  }
+}
+
+function getMaintenanceDatabaseUrl(databaseUrl) {
+  try {
+    const parsed = new URL(databaseUrl)
+    parsed.pathname = '/postgres'
+    return parsed.toString()
+  } catch {
+    return databaseUrl
+  }
+}
+
+function quoteIdentifier(value) {
+  return `"${String(value).replace(/"/g, '""')}"`
+}
+
 function run(command, args) {
   const result = spawnSync(command, args, {
     stdio: 'inherit',
@@ -31,6 +55,37 @@ async function main() {
   loadDefaultEnvFiles(repoRoot)
   ensureDatabaseUrl()
   normalizeDatabaseUrlForExecution()
+  const targetDatabaseUrl = process.env.DATABASE_URL
+  const targetDatabaseName = getDatabaseName(targetDatabaseUrl)
+
+  if (targetDatabaseUrl && targetDatabaseName && targetDatabaseName !== 'postgres') {
+    const adminPrisma = new PrismaClient({
+      datasources: {
+        db: {
+          url: getMaintenanceDatabaseUrl(targetDatabaseUrl),
+        },
+      },
+    })
+
+    try {
+      const existingDatabase = await adminPrisma.$queryRaw`
+        SELECT datname
+        FROM pg_database
+        WHERE datname = ${targetDatabaseName}
+        LIMIT 1
+      `
+
+      if (existingDatabase.length === 0) {
+        console.log(`[db:deploy] Creating missing database ${targetDatabaseName}`)
+        await adminPrisma.$executeRawUnsafe(
+          `CREATE DATABASE ${quoteIdentifier(targetDatabaseName)}`,
+        )
+      }
+    } finally {
+      await adminPrisma.$disconnect()
+    }
+  }
+
   const prisma = new PrismaClient()
 
   try {